My regular oil level. Trivial factoids follow. Idle Air Control (IAC) Valve Connector: Related Parts. Inspect the SCV (FRP) to be sure both O-rings remained with the valve. Intake Air Bypass Control Thermal Valve Test11-181. 00 to $1,000; OEM RB20 Manifold Pros and Cons. Fig 3: Disconnecting IAC Valve Electrical Connector Remove the IAC valve and discard the gasket. The idle air valve is much less likely to be bad than the possibility of an air leak elsewhere defeating its efforts to control. Remove thlottle body idle speed controlvalve assy. Selecting the right air control valves to regulate system pressure, direction of flow, and rate of flow is crucial when designing fluid power circuitry. These are often recommended to clean or swap during a normal tune up due to the nature of the valve clogging or breaking. Hey all, sorry this might be a stupid question but does anyone know if there is process for installing the idle air control valve or is simply plug and play? I need to install a new one on my 2004 Subaru Forester X and my local mechanics want to charge me $400 (part +labor). IAC Removal 1. My injectors are what I believe stock, but they did come out of a smashed up 240sx that had an entire turbo package on it, so they just might be after market My pump came from the same car, but I believe that to be stock all the way. Sensors on your engine give the computer advance warning of variable load so it can make better and faster decisions. (grounding the test point should disable air control valve (IAC) OR: The idle ('87 745ti) shoots up to about 2500 RPM. get a new one off ebay for about £25. Restore the performance of your supercharged engine with this 1999-2004 Ford Lightning idle air control valve to intake tube hose! Your idle air control components are a vital component to your engine running smoothly, and this hose is no exception. How to Diagnose an IAC Valve (Autozone Guides) Throttle Body. Pull out your IAC valve and clean it w/throttle body cleaner, rag, and old toothbrush. get a new one off ebay for about £25. valve connector and the throttle valve switch connector 1986(1/2)-88 model years. Set the idle air control (IAC) valve duty. California model only: Disconnect the purge control valve No. QUESTION: Idle Air control Valve 1990. The lowest bolt may require the Universal joint. or Best Offer Price is for 1 - adjust qty as needed. Tap into the oxygen sensor hole. Spray with MAF cleaner until the carbon build up is gone. Showing 1. It should be bright metal on the body and black on the top hat. Engine idle fluctuating and when it was doing so I placed my finger over the top hole in the throttle body thing and it started idling as. very simple job. From the Workshop Manual is in red (emphasis added by me): "The engine cooling system incorporates a coolant bypass solenoid valve and a coolant shutoff solenoid valve. Find many great new & used options and get the best deals for 99-00 Honda Civic B16A2 VTEC idle air control valve sensor IACV OEM 138200-0600 at the best online prices at eBay! Free shipping for many products!. 2009 Yamaha F60 4 Stroke Idle Air Control (IAC) Valve December 1st, 2016, 11:59 AM It has been suggested elsewhere that the below noted problems are possibly caused by a sticking IAC Valve on my Yamaha F60 4 stroke outboard. Joined Feb 6, 2007 · 27 Posts. Engine surges when idle, there is jerking in the engine and bad throttle response. replace the IAC valve today, and it still surges. Engine idle fluctuating and when it was doing so I placed my finger over the top hole in the throttle body thing and it started idling as. However, I have not found a step by step posting to date which definitively s. Related Parts. Many factors – such as a cold engine, the radio, or the air conditioning – effect the idling speed of the engine, so the idle control valve neutralizes these outside factors, and makes. the cause is really air leaks, the ECU is programmed to hold hot idle at 800, rpm , if it cant. Luckily, cleaning a 1987 BMW 325is idle air control valve is inexpensive and easy to do. BEFORE replacing the Compressor, ECV, and/or ETS: If the air conditioning system malfunctions intermittently during engine idle, check the vehicle production date and apply the following service procedure. 1L VIN T) or L01 (3. Some say you can get to the ICV (idle control valve) without removing the fuel rail and intake manifold which is true. Spray the inside of the brass housing clean of all deposits. This is a brand new and complete OE assembly that includes AAC and FICD solenoids. If the pneumatic valve is too big for your application, you will be wasting air and money. Quality Idle Air Control Valve for VW for Golf for Polo for Quantum for Saveiro 40430102 7079064VW - find quality electrical system, Other Auto Engine Parts & electrical system from Beijing Sany Auto Parts Trade Co. i can warm car up and block off tube under the throttle body going to air regulator and iacv and hole on plastic intake tube and the idle lowers to about 1000-1200. On cold starts, the IACV sends rpm’s higher than on a warm start. Now the engine idle speed will be too high. Remove the volume control screw from the left side of the carburetor. 4-Wire GM Idle Air Control (IAC) Valve Connector for Vehicles with Fuel Injection. 0 eng-truck has not had the luxury of power steering because it used to smoke when ever power steering was added to the reservoir. Showing 1. Volvo S40 V40 Fuel Injection Idle Air Control. The idle control valve is used for regulating the amount of air that goes past the throttle valve when it is closed while your vehicle is at an idle. After 25 years, the engine idle control on my 1978 Jaguar XJ-S was no longer functioning properly. If removed you'll need to adjust the t/b blade and then re-calibrate the tps to suit. 32 Fast idle cam plate screw 95 Fuel valve seat o-ring seal 158 Main body assy 33 Choke control lever nut & lockwasher 96 Fuel level check plug 159 Throttle body gasket 34 Wire bracket clamp screw 97 Fuel level check plug gasket 160 Pump oper. Disconnect the IAC valve connector. Related Parts. The idle air control valve itself is faulty Other Honda models that can sometimes have this issue include the Odyssey minivan and the Honda Pilot, both of which have technical service bulletins (TBBs) listed for them that any repair shop can access for more details. You can remove the ICV but I'd say it's pretty unlikely that you'll get it back in. Cleaning DIY: 850 IAC (Idle Air control valve) cleaning Post by jreed » 19 Mar 2012, 21:08 It got warm here a couple of days ago for the first time this year (~80-85F) and our '97 855 GLT Volvo at 155k miles suddenly started to have a wandering idle speed and stalling at idle, but only when the car was fully warmed up. O rings are 8mm ID x 1. I'm not going to touch the IAC valve for now. Parts like Control Valve (ATM) are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. If you have problems with this valve, it could mean that your Nissan 240SX has a rough idle or stalls out frequently. Replace if dirty. Discussion Starter • #1 • Apr 22, 2008. Remove the idle control valve mount by sliding the valve out of the rubber retaining sleeve. NISSAN > 1990 > 240SX > 2. Once a new IAC has been installed the step count must be reset. probably about 5 minute job. 1 product rating 1 product ratings - Idle Air Control Valve fits 1991-1998 Nissan 240SX STANDARD MOTOR PRODUCTS. The metering sleeve can become seized in the brass housing in the carburetor. It should be 10- 11 mm (0. A separate control unit is used for the idle stabilization valve. Isuzu 6hk1 valve adjustment procedure. Rotation of the armature moves the air valve in and out, adjusting the idle speed of the engine. Install thlottle body idle speed control valve assy. Many factors - such as a cold engine, the radio, or the air conditioning - effect the idling speed of the engine, so the idle control valve neutralizes these outside factors, and makes. Resistance Inspection. Sometimes parts go bad, which results in your car idling strangely or stalling. IAC Removal 1. 2001-) > Ford Workshop Manuals > Mechanical Repairs > 3 Powertrain > 303 Engine > 303-14 Electronic Engine Controls > Description and Operation > Diagnosis and Testing > Removal and Installation > Idle Air Control (IAC) Valve - 1. Shop lowest-priced OEM Nissan 240SX Idle Control Valves at NissanPartsDeal. Here you can see that the cam lobes on. Grounding CIS (test point) does not have any effect on idle. to prevent any loss of functionality. Deceleration valve: (Also called Auxiliary Air device, or vacuum control. 1 Response to 1995-1998 240SX KA24DE IACV ( Idle Air Control Valve ) Arty Thao says: February 10, 2015 at 3:01 am. To remove he IACV: 1st, you can use the wratchet and deep well 10mm socket to get to the 3 bolts you can see. If you have problems with this valve, it could mean that your Nissan 240SX has a rough idle or stalls out frequently. It must be performed under any of the following conditions: Each time electric throttle control actuator or ECM is replaced. If the PCV valve flows excessive air at idle, the result can be unresponsive carburetor idle-mixture screw adjustment, poor idle quality, as well as EFI idle tuning difficulties. Symptoms - Poor idle, self reving at idle and poor performance at a constant rpm. Remove the two idle air control retaining bolts with the appropriate socket. 5 percent, raise the outboard engine speed to 1000 r/min or higher by turning the by-pass air screw and hold that speed for 10 seconds. When the IACV is activated, the valve opens to maintain proper idle speed. When you see either of these two terms, they are referring to the same part of the system. Idle Air Control (IAC) Removal and Installation! CAUTION Disconnect the battery leads before removing, repairing or installing any electrical or fuel delivery component. Replace if dirty. Gasket not included, but is available in our catalog. Our recommendation: It is a good idea to get an air induction service performed every 3 to 4 years. Idle speed could not be reduced to the 750 RPM that the car required. Now the engine idle speed will be too high. ) The Air Valve on the 1. Engine idle fluctuating and when it was doing so I placed my finger over the top hole in the throttle body thing and it started idling as. The first was factory, the 2nd was O'Reilly (no problem) the 3rd was AZ because it was a few dollars less than O'Reilly but had the problem as outlined in previous post. When I got under the hood I identified it as the unit farthest away from you standing on the drivers side mounted to the throttle body throat. Most automotive repair facilities can perform this service. 240sx General Discussion idle air control valve removal question 91 240sx General discussion forum about the 240sx, and a great place to introduce yourself to the board!. For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648. Volvo S40 V40 Fuel Injection Idle Air Control. Early 944's and 944S/S2's used differing idle control systems. BEFORE replacing the Compressor, ECV, and/or ETS: If the air conditioning system malfunctions intermittently during engine idle, check the vehicle production date and apply the following service procedure. Remove the two idle air control retaining bolts with the appropriate socket. probably about 5 minute job. Commonly referred to as the IAC valve, this component controls the Dakota’s idle speed by allowing a certain amount of air to bypass the throttle plate. Brand: Nissan. lever retainer. Jul 03, Ford F L / L , Fuel Injection Idle Air Control Valve Gasket by Victor Reinz®. Tools Used: Tools, 10 mm wrench, Throttle body cleaner, Plastic bucket or container. (1) Check float needle and seat for proper seal. Remove the idle solenoid valve from the right side of the carburetor (if applicable). If the valve did not open at all, or if the valve does not close, the valve is faulty. Adjust idle speed to specifications on decal in engine compartment. I read on the board that the valve can be replaced DIY so I took a chance and did the job myself. The idle is around 850-925 rpm, it seems "lowish" but but it's fairly smooth and I noticed that moving from idle to speed is so much smoother, no"weakness" as before. The IAC valve controls the amount of air the bypasses the throttle plate, and is used to control the idle speed of the engine. Nissan - Idle Control Valve-Nissan OEM Idle Air Control Valve AAC IACV - Nissan 240SX S14 SR20DET. These are often recommended to clean or swap during a normal tune up due to the nature of the valve clogging or breaking. [Fix 1: Idle Air Control "IAC" Valve Rebuild] Save $150 by fixing IAC instead of replacing it. (If you want to simulate this in a properly working car, just yank the idle speed controller plug off. Written by: webmaster DIY difficulty: 6 (1-10, 10 being hardest) Symptom: If you are getting a check engine light with a diagnostic code of P0410 (Secondary air injection system) most likely your secondary air injection one way valve is plugged up, the remedy is to replace the valve, and then reset the check engine light. Refitting is the reverse of removal Make sure you line up the new gasket. This is a vehicle-specific issue. If it doesn't rattle, replace it. How to Diagnose an IAC Valve (Autozone Guides) Throttle Body. Locate the IAC valve below the inlet manifold. Upon research i was told that the Idle Air Control Valve may be defective. Relieving Fuel Pressure When Opening FI System. The newer valve has a spring loaded return spring and the on board diagnostics will cycle the valve in a test mode with socket six. Tuck it out of the way. The control valve stabilizes the idling of the car and it did idle a bit rough. Clean the residue that the paper gasket may have left. Check the Idle Control System Idle speed is controlled by the Idle Air Control Valve (IACV). Order Nissan/Datsun 240SX Idle Air Control Valve online today. Intentionally blank: Intentionally blank: Related Parts. 0 air valve. 300-500 RPM, 4 or 5 times, stop and idle correctly for about 30 seconds and then start surging again. Although generic, the specific repair steps may vary depending on make. Remove valve from pump and banjo fitting. ) Engine Installation; Engine Installation (cont. Remove the two bolts securing the IAC to the intake. The idle is around 850-925 rpm, it seems "lowish" but but it's fairly smooth and I noticed that moving from idle to speed is so much smoother, no"weakness" as before. The ECM wants to be in control of the idle and is not happy when it can't control it. The best way to clean that is to remove the throttle body, remove the IAC from the throttle body and clean it and the hole it came out of. To install, reverse the removal procedure. Disconnect the ECV connector (A). use a 22mm wrench or u can grind out the slit in ur 02 socket OR u might be able to use a ajustable rech since theres more room. A relatively small amount of fuel and air travel through the intake at idle speed. This valve is comonly called the idle motor, the IAC (idle air control) or the IAB (Idle air bypass). This line is on the left side of the throttle body (the right sideas you face the engine), and is the only vacuum line on the throttle body. Clear Engine Check light. Evacuate refrigerant from the A/C system. It should be 10- 11 mm (0. Locate the IAC valve below the inlet manifold. This electronically controlled valve works to vary the amount of air entering the engine while the throttle body is closed to stabilize the idle. The lowest bolt may require the Universal joint. Replacing an Idle Air Control Valve (Honda Civic 1999 D16Y7). When you release the accelerator pedal, the throttle closes, returning the engine to idle speed. Theo · Registered. Problem - Dirty Idle air control valve. When you turn on the car cold , the ECM opens the idle air control valve, allowing the entry of large amount of air for a few minutes until the engine is taking. Where is 1997278 evap valve located on 2002 trailblazer? I think that part number is for the EVAP vent valve, and it is located underneath the vehicle, back by the gas tank, attached to a hose that leads to the EVAP canister. There are two valves controlling water flow on the 2013 1. We are currently authorized to sell 200SX PARTS 240SX PARTS 300ZX PARTS 350Z PARTS ALTIMA PARTS ALTIMA COUPE PARTS ALTIMA HYBRID PARTS ARMADA PARTS FRONTIER PARTS HARDBODY PARTS MAXIMA PARTS MURANO PARTS PATHFINDER PARTS QUEST PARTS SENTRA PARTS TITAN PARTS VERSA PARTS XTERRA PARTS, NISMO PARTS & ACCESSORIES. IAC (Idle Air Control) valve; EGR (Exhaust Gas Recirculation) components; ICM (Ignition Control Module) and Coil; Coil Connectors; ECT (Engine Coolant Temperature) Sensor for PCM; ECT Sensor for Temperature Gauge; IAT (Intake Air Temperature) Sensor; MAP (Manifold Absoluter Pressure) Sensor; MAP Sensor Seal; MAF (Mass Air Flow) Sensor. This is the new style unit with steel adjustment screw as opposed to the older style that utilized a brittle plastic screw. of China Suppliers - 164031041. The best way to clean that is to remove the throttle body, remove the IAC from the throttle body and clean it and the hole it came out of. If either the pump or the valve fail, you won't be able to pass emissions testing. Related Parts. 5 and later 944's and all 944 Turbos use a DME-controlled, electrically operated bypass valve referred to as the idle controller to regulate idle speed. once you get them loose you can then turn then by had with the socket still over the bolt. Remove the valve by undoing the two phillips head retaining screws. Within a couple of minutes, you can fix your idle hunting or stalling problem! If you are not one for write-ups, then scroll down and watch the video we supplied that walks through each and every step! First, You will want to locate the Idle air control valve on your car. Clean Idle Air Control Valve – Park the car on a flat, level surface and turn the engine off. Took my car to Auto Zone and they ran the scanner. Your new part should have come with new, replacement gasket. Throttle Body and Idle Air Control Valve Cleaning There've been plenty of posts about how to clean both the throttle body and idle air control valve, but I have one question. All fit 1989-1998 Nissan 240SX and more. 4L L4 > Electrical-Connector > Idle Air Control (IAC) Valve Connector. 69: Right hand Bank Heated Oxygen Sensor. Nissan OEM Idle Air Control Valve AAC IACV - Nissan 240SX S14 SR20DET Nissan - Idle Control Valve-Crank sensors -Throttle Position Sensor Crank Sensor- MAP ABS Sensors- INJECTORS AIR FLOW METER MAF- CRANK /CAM coilpack Airflowmeters(MAF) Airflowmeters| Maf Sensor| Map| Cam| Crank| Tps| Idle Valve| Oxygen sensors We sell :AUTO SENSORS for most VEHICLEs Air Flow Meter Sensors, Air fuel ratio. Z32 Idle air control valve (IAA / IACV) found on the rear drivers side of the intake plenum on all 1990+ Nissan 300ZX models. Remove shaft by rotating motor (not seen in pic because it is behind flange). 22mm) good idle quality, excellent torque curve. I am making this post because… When i first started up my brothers K swap I was first excited that it was running well, but after a min of smooth idle it would begin to surge. With this valve, the PCM increases duty-cycle to the magnetic coil. Pull the carburetors upward and away from the engine. O2 sensor would not cause AIR code. [Jeremy] Here is a quick trick to start a flooded car: Disconnect the four injector electrical plugs and crank with the pedal mashed to the floor and burn out the extra fuel and then reconnect. Clean Idle Air Control Valve – Park the car on a flat, level surface and turn the engine off. Shop lowest-priced OEM Nissan 240SX Idle Control Valves at NissanPartsDeal. Installed new gasket. At an idle, engine speed is low, around 600 RPM. Because it bypasses air, it’s also called an air bypass valve. This is under the right side "air filter" when you remove the cover. Symptoms - Poor idle, self reving at idle and poor performance at a constant rpm. Brand new OEM Nissan 240sx S13 & S14 KA24DE Idle Air Control Valve IACV AAC. Those of us driving 1997-1999 3. When the engine is cold, the IAC valve helps to get it started. Unplug the electrical connector and undo the two 10mm bolts. Parts like Control Valve (ATM) are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. If need be, remove the air filter and back out the. Auxiliary Air Valve- A mechanical door that is controlled by a electrically heated bi-metallic strip. To correctly set the base idle on an EA-AU Falcon: With a fully warm engine, disconnect the Idle Speed Control (ISC) valve electrical connector. Ensure the propane hose is securely connected to the regulator/compression valve. Let it air dry or you can blow with compressed air. Discussion Starter • #1 • Apr 22, 2008. If you have determined that you don’t have a vacuum leak, the IAC is a great second place to troubleshoot P0507. Some manufacturers put the IAC in the throttle body, while others may place it elsewhere. IAC Removal 1. Problem - Dirty Idle air control valve. If the pneumatic valve is too big for your application, you will be wasting air and money. very simple job. Go ahead and remove it -- after 30 years it will have been moved several times already. JDM NISSAN S14 240SX Idle Air Control Valve IACV AAC SR20DET 23781 69F10. What tool to remove idle air control valve from 2009 Toyota Corolla (1. 0 air valve. It achieves this by ensuring that the idle speed is always constant. The idle control valve only controls idle. New OEM 240SX Idle Air Control Valve (IACV AAC) fits all S13/S14 models equipped with a KA24DE. See Idle Air Control - Harley Davidson Community To remove the unit I took the following steps: - remove air filter and backplate - Remove saddle - (Partly) Remove gas tank (To get some free space on top of the infold. Nissan OEM Idle Air Control Valve AAC IACV - Nissan 240SX S14 SR20DET Nissan - Idle Control Valve-Crank sensors -Throttle Position Sensor Crank Sensor- MAP ABS Sensors- INJECTORS AIR FLOW METER MAF- CRANK /CAM coilpack Airflowmeters(MAF) Airflowmeters| Maf Sensor| Map| Cam| Crank| Tps| Idle Valve| Oxygen sensors We sell :AUTO SENSORS for most VEHICLEs Air Flow Meter Sensors, Air fuel ratio. The lowest bolt may require the Universal joint. The first was factory, the 2nd was O'Reilly (no problem) the 3rd was AZ because it was a few dollars less than O'Reilly but had the problem as outlined in previous post. 240sx General Discussion idle air control valve removal question 91 240sx General discussion forum about the 240sx, and a great place to introduce yourself to the board!. Pull either battery cable off and wait 30 seconds, then reconnect. When you release the accelerator pedal, the throttle closes, returning the engine to idle speed. Keeping this system in excellent repair helps maximize your car's fuel efficiency, saving you money over time. Set regulated air pressure to approximately 97kPa (14. The IAC, Idle Air Control, provides the method whereby airflow bypasses the CLOSED throttle valve to supply enough airflow for keeping the engine at idle RPM. Set the idle air control (IAC) valve duty. Luckily, cleaning a 1987 BMW 325is idle air control valve is inexpensive and easy to do. Instructions Preparation. Less than $50 (1) $100 - $250 (3) Series. Joined Jun 27, 2008 · 1,081 Posts. JDM NISSAN S14 240SX Idle Air Control Valve IACV AAC SR20DET 23781 69F10. Use a philip’s head screwdriver, but make sure it is a snug fight. Using these two valves, the coolant flow through the engine block can be. This valve is comonly called the idle motor, the IAC (idle air control) or the IAB (Idle air bypass). Nissan 240SX Idle Control Valve. Idle control vale plug. [Jeremy] Here is a quick trick to start a flooded car: Disconnect the four injector electrical plugs and crank with the pedal mashed to the floor and burn out the extra fuel and then reconnect. 99 up to $48. O2 sensor would not cause AIR code. Remove old gasket (no need for scraping as it is a metal gasket). Idle Air Control (IAC) System RPM Lower Than Expected. Remove the air cleaner inlet tube and the throttle cover with the appropriate sockets if they are in the way. Most of the time all you need to clean is the TB. If you still have an idle low or high problem, then clean the IAC valve. Follow these steps to reset your Dodge Dakota's PCM to allow for relearning: 1. The idle air control valve is responsible for managing the engine idle speed. 1992 nissan 240sx. Clear Engine Check light. IDLE AIR CONTROL (IAC) VALVE RESETTING Any tweaking of the throttle stop screw will give the ECM fits. Idle air control valve uses a polymer blended, isotropic neodymium/iron/boron magnet to provide accurate control of the pintle and airflow ensuring accurate operation Every idle air control valve is manufactured with epichlorohydrin material to withstand resistance of vehicle temperatures ranging from -40 deg. Idle Air Control Valve 2zz - READ BEFORE YOU REMOVE IT! Post by zrooster99 » Wed Mar 05, 2014 8:22 pm So this weekend I had decided it was time to clean my IACV - my idle was doing a lot of wandering, and I had tried just about everything else. If you don’t have AC, you don’t have to plug it in. Replaced copper gasket. The IAA controls idle and compensates for cold engine starts and pressure changes. I can’t locate a device that might be missing this wire, could it be the Idle Air. you should be able to remove throttle body and then remove iac. Reason: Throttle body having layer of deposits which is preventing the throttle valve from closing properly. 1992 Nissan 240SX ‹ Show Categories Idle Control Valve. On cold starts, the IACV sends rpm’s higher than on a warm start. Does the ECU supply it a +12v signal which is on or off like an air by-pass valve, or is it a linear signal driving a stepper motor where it can adjust how much the valve is opened?. 2001-) > Ford Workshop Manuals > Mechanical Repairs > 3 Powertrain > 303 Engine > 303-14 Electronic Engine Controls > Description and Operation > Diagnosis and Testing > Removal and Installation > Idle Air Control (IAC) Valve - 1. Also know as IAC, idle air control solenoid, idle air control motor. Intake Air Bypass Control Thermal Valve Test11-181. I have tried holding my hand over the exposed valve, but it runs extremely rough then dies. valve connector and the throttle valve switch connector 1986(1/2)-88 model years. Engine Diagram; Engine Removal; Engine Removal (cont. Remove the two bolts and two nuts, then pop the throttle body off. Joined Jun 27, 2008 · 1,081 Posts. You have to unplug it in order to remove the intake ducting. The older Ford products more often use a spring-load plunger for the idle control valve. There are several known issues with this family of vehicles & A/C systems. Symptoms: No fast idle at start up. 6 and 11 tubes from the carburetor. Then let it idle. This is the new style unit with steel adjustment screw as opposed to the older style that utilized a brittle plastic screw. Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific range. ) Engine Installation; Engine Installation (cont. To remove he IACV: 1st, you can use the wratchet and deep well 10mm socket to get to the 3 bolts you can see. Grounding CIS (test point) does not have any effect on idle. If the PCV valve did not regulate air flow, the engine would act like it had a vacuum leak. Recommend to swap out when doing an tune up due to the nature of the valve becoming old, dirty, clogged, or broken. Nissan 240sx S13 KA24DE EGR Removal Emission Deleted Part 1 - Duration: 19:57. NISSAN > 1990 > 240SX > 2. Price: No parts for vehicles in selected markets. Disconnect the electrical connectors for the IAC (Idle Air Control) motor and the TPS (Throttle Position Sensor). Nissan 240SX Idle Control Valve. 62: Induction Control Valve Position Sensor (Non Turbo). Unplug the electrical connector and undo the two 10mm bolts. The Motorcraft idle air control valve solves the vibration, humming noise problem. It is a 9x2" filter to match the factory backing plate. just surged a little faster. 5L Montero Sports or 1990s Monteros can purchase a new Mitsubishi IAC for about 1/3 to 1/2 the cost of the same part from the dealership. The car started up and idled about 1200 at first, then climbed to about 1800. 07-20-09 02:39 PM - Post# 1738724 I have a 1994 Chevy Suburban, 5. Systems utilizing port nozzles will have an outlet fitting installed in the bottom of the metering valve. Remove the choke valves from the carburetor and loosen the carburetor insulator bands. Surging idle, before and after new IAC valve I have a surging problem, about every 3 seconds the car revs slightly. Brand: Standard. This kit includes 2 Genuine Toyota water by-pass hoses that connect to the idle air control valve on the bottom the the throttle body on Toyota 3. Defective Idle Speed Control System. Well, I pulled it, cleaned it , and put it back. To set the idle air control valve duty to constant 22. As with all genuine Honda parts expect a perfect fit and performance every time. Solution:. , providing the finest in carburetor and fuel injection repair, restoration and rebuilding for Corvette, Chevrolet, muscle-cars and hot rods. Most of the emissions control/idle/coolant stuff is located on the lower portion, with the exception of the. In this case, one day the vehicle mysteriously refused to start when the ignition key was turned. Also, later year models using a heated valve will require the electrical harness to be disconnected prior to valve removal. Supplied from Honda complete with new gasket. Idle Air Control Valve Gaskets by Nissan OEM IACV/AAC Gasket KA24 RB20 RB26 23785-40F00 Brand new OEM KA24DE RB20DET RB26DETT IACV Gasket Equivalent Gasket Available by DIF Brand DIF 10303 }. 5L Montero Sports or 1990s Monteros can purchase a new Mitsubishi IAC for about 1/3 to 1/2 the cost of the same part from the dealership. I know the part. How to Diagnose an IAC Valve (Autozone Guides) Throttle Body. Remove thlottle body idle speed controlvalve assy. Where is the idle air control valve located on a 1995 Nissan Altima and how do you change it? Is it difficult to get to and would I need to jack my car up? My car idles rough and hesistates on accelcelartion I replaced the fuel filter and the mechanic said I should replace my idle air control valve (IACV). If yes, the valve is OK; go to step 6. This is controlled by the engine's computer. Disengage the wiring harness connector from the IAC valve. Nissan 240SX Cars & Trucks. just surged a little faster. The Pair Valve, or "Secondary Air System" is a pollution control "Passive Air Injection" device, designed to "wash out" the purposely rich exhaust of the new metric bikes in order to pass EPA restrictions for import in the United States and other countries with similar restrictions. Tuck it out of the way. 5 and later 944's and all 944 Turbos use a DME-controlled, electrically operated bypass valve referred to as the idle controller to regulate idle speed. Disconnect the negative battery cable. Ensure the propane hose is securely connected to the regulator/compression valve. It comes into play when the engine is cold and allows more air into the intake to create the high idle when cold (along with the cold start injector) to help with getting the engine to normal operating temperature. 00 to $1,000; OEM RB20 Manifold Pros and Cons. I should note that at idle and full throttle, the EGR valve is closed, and does not allow any exhaust into the intake. Home; Isuzu 6hk1 valve adjustment procedure. NOTE: The engine coolant temperature must be below 65°C (149°F). DIF S14 or S15 SR20DET IACV Idle Control Gasket This gasket is recommended when changing out your gaskets on the engine or when performing routine maintenance. The idle control valve is used for regulating the amount of air that goes past the throttle valve when it is closed while your vehicle is at an idle. The two air injectors are seen. After cleaning your mounting surface, take your new Honda idle air control valve and carefully transfer over the hoses. Air Intake / Charge Temperature Sensor. Remove the vacuum hose (A) from the intake air duct, and connect a vacuum pump/gauge (B) to the hose. P1513 Idle air control valve P1514 Idle air control valve P1515 Intake manifold switchover 1 P1516 Intake manifold switchover 1 P1524 Camshaft adjustment, bank 2 P1530 Camshaft adjustment, bank 1 P1531 Camshaft adjustment, bank 1 P1539 Camshaft adjustment, bank 2 P1541 Fuel pump relay output stage P1551 Idle air control valve P1552 Idle air. Also know as IAC, idle air control solenoid, idle air control motor. I bought a K&N filter setup from Summit Racing (P/N KNN-60-1070). There is a throttle body with an air vane controlled by a motor and a throttle position sensor to send feedback to the computer. If the PCV valve flows excessive air at idle, the result can be unresponsive carburetor idle-mixture screw adjustment, poor idle quality, as well as EFI idle tuning difficulties. Free shipping. The idle is controlled by the computer. The idle control valve is responsible for maintaining a constant and consistent engine. In the Chilton manual, it says to avoid getting carb cleaner on the idle air control valve, and to remove it if necessary. [Essentially mystery solved. Cleaning idle air control valve on 99 accord 4 cylinder Results 1 to 5 of 5 Discuss Cleaning idle air control valve on 99 accord 4 cylinder in the rec. with the IAC unplugged, it stops. (See Idle Air Control System Inspection. 4L L4 > Electrical-Connector > Idle Air Control (IAC) Valve Connector. 4L L4: Fuel & Air: Idle Air Control (IAC) Valve: Choose for Me to Minimize Cost Choose for Me to Minimize Cost. The idle air valve is much less likely to be bad than the possibility of an air leak elsewhere defeating its efforts to control. New version comes with metal screw to replace worn plastic type screw on the older units. the computer decides what idle is needed depending on the inputs from it's sensors. I have cleaned the Throttle Control Module. Idle Air Control (IAC) Valve Removal and Installation 1. Disconnect the battery cables from the battery. IAC Removal 1. It achieves this by ensuring that the idle speed is always constant. The idle control valve only controls idle. Inspect the SCV (FRP) to be sure both O-rings remained with the valve. Air Control IAC Valve 35150. 1995 Nissan 240SX. Idle air control valve. 7 Nvm (38 kgf·cm, 33 in. valve harness connector (Auxiliary Air Control) and the throttle valve switch harness connector. If either the pump or the valve fail, you won't be able to pass emissions testing. Cleaning idle air control valve on 99 accord 4 cylinder Results 1 to 5 of 5 Discuss Cleaning idle air control valve on 99 accord 4 cylinder in the rec. Don't forget the IAA gasket which is not included as well as the Z1 Silicone Idle Air Hose Kit. Symptom and Subsystems to Check: 1. The fix here is to inspect the EGR system, remove the EGR valve and check the valve and port for carbon, and remove the carbon from the port if it is plugged. If the O-rings are not with the valve, remove from the supply pump. The valve on the ISC allows extra air to bypass the throttle plate. Remove air intake (I have a Carbonio intake; I could have probably kept it on the car but it made it much easier to get to the fuel pump with it off) 5. spray base of Idle screw clean to ensure no carbon deposits remain. P1513 Idle air control valve P1514 Idle air control valve P1515 Intake manifold switchover 1 P1516 Intake manifold switchover 1 P1524 Camshaft adjustment, bank 2 P1530 Camshaft adjustment, bank 1 P1531 Camshaft adjustment, bank 1 P1539 Camshaft adjustment, bank 2 P1541 Fuel pump relay output stage P1551 Idle air control valve P1552 Idle air. Idle air control valve 1 Answer. Ford IAC valve replacement: Below are some pictures of the original idle air control valve from a 1998 ford crown victoria. In some cases, all it takes is a little bit of cleaning to get rid of carbon build up that can cause the actuator to stick and eventually fail in regulating the vehicle's idle. The EGR valve does not open under heavy load (I am unaware of any exceptions) and therefore, you will not be burning exhaust gasses while at wide open throttle. Fig 3: Disconnecting IAC Valve Electrical Connector Remove the IAC valve and discard the gasket. A signal from the coolant temperature sensor provides a correction factor. What is the Idle Air Control Valve and where do I find it on this engine? I also have found a single black wire that comes from the harness, just under the Mass Air Meter (right above the coolant Temp switch), that has an exposed spade connector in line, which has broken off of the device that it should go to. Kit Contains-16261-62060; 99556-10300; Part Fitment. NISSAN > 1990 > 240SX > 2. Tighten the screws and re-connect the electrical. If the pneumatic valve is too big for your application, you will be wasting air and money. 5+ 944's and 944 Turbos. , providing the finest in carburetor and fuel injection repair, restoration and rebuilding for Corvette, Chevrolet, muscle-cars and hot rods. The new unit from the dealer is a bit different then the unit that was on my car so I wanted to show the differences so that people would not freak out when installing a new unit. Brand new OEM Nissan 240sx S13 & S14 KA24DE Idle Air Control Valve IACV AAC. Set the idle air control (IAC) valve duty. You will have to feel around for the lower bolt, which will be just out of plain sight. The job took about 3 hrs. (See Idle Air Control System Inspection. I installed the new OEM Mercruiser part last night, and it completely resolved the idle issue. Also know as IAC, idle air control solenoid, idle air control motor. I also have an Exhaust Temp Sensor. Symptoms - Poor idle, self reving at idle and poor performance at a constant rpm. NissanPartsDeal. Thermostat and Water Thermoswitch. 00 shipping. Remove the two bolts and two nuts, then pop the throttle body off. Joined Jun 27, 2008 · 1,081 Posts. QUESTION: Idle Air control Valve 1990. 1 Answer Need fusebox diagram for a 1995 nissan 240sx. These are the T style not the L style. Re: Swirl Control Valve Actuator (leaving it on) Post by ViperGT » Thu Aug 07, 2014 8:40 pm the valves needs to be closed at WOT bellow 3. 8L engines do not have an Air Valve. You need to remove the intake manifold cover to access it. The idle is around 850-925 rpm, it seems "lowish" but but it's fairly smooth and I noticed that moving from idle to speed is so much smoother, no"weakness" as before. Ka24de Idle Problems. So i have bought a new idle air control valve, however i am unable to locate this valve anywhere :( Any tips on where it might be. Reason: Throttle body having layer of deposits which is preventing the throttle valve from closing properly. 0 eng-truck has not had the luxury of power steering because it used to smoke when ever power steering was added to the reservoir. DSMISC Automotive sells original Mitsubishi Idle Air Control valves for many 1990's and early 2000's Mitsubishis. Shipping to 98052: Items in search results. You will need a #25 torx wrench; it is the little star looking driver. Which as most Honda owners know its most likely a Throttle Position Sensor ( TPS ) issue or a IACV issue. Electrical Repair Manual. NOTE: On the LB6 (2. 59: Oxygen Sensor (Rear), 4 Cylinder. The mixture control lever is connected to a mixture valve metering sleeve through an arm that is comprised of a tightly-woven spring. Now remove the connector to the Idle Air Controller (IAC) just on the other side of the throttle body. Disconnect the battery cables from the battery. Idle Control Valve (part) Brand. Ensure the propane hose is securely connected to the regulator/compression valve. Theo · Registered. Do not re-use the old gasket. Ignition timing control is determined "by an engine speed signal from the Hall sender, and a load signal from the air sensor. It should be 10- 11 mm (0. (Not pictured but on the other side of this unit is the idle adjustment screw. New OEM 240SX Idle Air Control Valve (IACV AAC) fits all S13/S14 models equipped with a KA24DE. Grounding CIS (test point) does not have any effect on idle. Shop lowest-priced OEM Nissan 240SX Idle Control Valves at NissanPartsDeal. The oxygen sensor mounting hole offers another handy port to check backpressure. Buy cheap Idle Air Control Valve for FORD online. I am trying to eliminate my idle air control valve. Terminals and seals are included. of China Suppliers - 164031041. It has three pins, where the '89, only has a two pin connector. Throttle Body and Idle Air Control Valve Cleaning There've been plenty of posts about how to clean both the throttle body and idle air control valve, but I have one question. The diaphragm broke inside of it and the dealer wants $200 for it. 59: Left hand Bank Heated Oxygen Sensor, V6. remove the gasket from the throttle body. Spray any area that you can get to. Also, any air leak will bypass the airflow meter deflection plate, which means it will improperly meter fuel injection flow at the fuel distributor - creating a lean mixture. The idle control valve is responsible for maintaining a constant and consistent engine. Some manufacturers put the IAC in the throttle body, while others may place it elsewhere. They are pretty clean and No i have not cleaned them and are not stuck as so many of them are now a days. These are often recommended to clean or swap during a normal tune up due to the nature of the valve clogging or breaking. If the normal learn limits of the ECM are exceeded, they will be reset to nominal, causing an erratic idle. It controls idle speed fluctuations and adjusts the basic idle speed by supplying air to the intake manifolds according to the:. Remove the hose from the end of the PCV valve. Since a stepper motor does not provide any feedback on its actual position, the computer simply counts steps and assumes that the valve lands in the correct place. I am making this post because… When i first started up my brothers K swap I was first excited that it was running well, but after a min of smooth idle it would begin to surge. ) If not as specified, perform the further inspection for the IAC valve. Throttle Valve Housing (aka Throttle Body): This part is almost always worn-out. The most common failure is partial/complete jamming of the actuator (due to dirt/dust or even oil). Idle Air Control Valve Genuine OEM Golf 16V Mk2 1983 to 1991 035 133 455 F / For 1. If the PCV valve flows excessive air at idle, the result can be unresponsive carburetor idle-mixture screw adjustment, poor idle quality, as well as EFI idle tuning difficulties. The idle air control valve can be a very sensitive unit and if there are any leaks of air, the engine will respond with an erratic idle. From the Workshop Manual is in red (emphasis added by me): "The engine cooling system incorporates a coolant bypass solenoid valve and a coolant shutoff solenoid valve. 3L Duratec-8V (Rocam). From what I understand, at 1600°C NOx is formed because air molecules, nitrogen N2 and Oxygen O2, react. Clean carbon out of intake manifold ports. The idle speed adjuster was developed to last the life of the vehicle, but we have seen a substantial amount of failure as the vehicles age. If you don’t have AC, you don’t have to plug it in. Hello all, I have a 2g with a 1g throttle body. While many people chose to replace their RB20 intake manifold with an aftermarket front facing design, there are the select few who chose to stay with the OEM cross over style design. After it's removed, soak the valve with non-chlorinated brake cleaner and work the valve back and forth to clear the build-up. Also, any air leak will bypass the airflow meter deflection plate, which means it will improperly meter fuel injection flow at the fuel distributor - creating a lean mixture. California model only: Disconnect the purge control valve No. Discussion Starter • #1. This should only be adjusted after checking for air leaks as above. Idle Air Control Valve. During engine idle, brief but periodic negative pressure pulses in the exhaust system draw air through the aspirator valve and into the exhaust stream at the catalytic converter. The control valve stabilizes the idling of the car and it did idle a bit rough. This valve counters the strain on the engine that occurs when the air conditioning is turned on or when lights are activated. Turn it over, and you'll see the IAC valve bolted to the underside of the TB. Note that some engines will have a hose clamp securing the hose to the end of the PCV valve, whereas others will not and can be simply slid off of the end of the valve. Remove the air cleaner inlet tube and the throttle cover with the appropriate sockets if they are in the way. Re: Swirl Control Valve Actuator (leaving it on) Post by ViperGT » Thu Aug 07, 2014 8:40 pm the valves needs to be closed at WOT bellow 3. I plugged it back in and it started surging approx. Trim: SE, STD. The idle is controlled by the computer. Gary Hodges Ramjet, Ltd. 5k inorder to get the extra torque, having them closed at vaccum would do nothing really. Pull the carburetors upward and away from the engine. Ok I took it off and cleaned it and the port it goes into and that seemed to help. The service manually states that I must torque the screws that hold both in place to specific levels. The best way to clean that is to remove the throttle body, remove the IAC from the throttle body and clean it and the hole it came out of. near the idle position and when the throttle actuator tries to move it the very fine amounts needed to attain a steady idle it struggles. Ensure the propane hose is securely connected to the regulator/compression valve. only) Air Vent Control Valve (after '84 calif. Gently pull the wiring harness away from the intake manifold so the manifold can be removed without pinching any wires. An engine that revs high at idle, or with an idle that surges up and down, may have a vacuum leak, or a torn intake. Idle Air Control Valve Gaskets by Nissan OEM IACV/AAC Gasket KA24 RB20 RB26 23785-40F00 Brand new OEM KA24DE RB20DET RB26DETT IACV Gasket Equivalent Gasket Available by DIF Brand DIF 10303 }. Idle Air Controls (694) Vehicle Speed Sensors (498) Camshafts (428) Throttle Position Sensors (317) Camshaft Kits (203) Carburetors (116) Fuel Injection Systems (86) Wiring Pigtails (42) Relays (22) Idle Air Control Valve Gaskets (19) Engine Management Systems (14) Air Cleaner Replacement Components (7) +. Isuzu 6hk1 valve adjustment procedure. Reading up it seems to be a pretty common thing, and the idle control valve (sometimes called ISV - idle stabiliser valve) seems to be the first thing to try. If the aforementioned steps have not been successful, consider replacing the power steering pressure switch, idle air control valve, or electronic throttle body. The Idle mixture screw or pilot screws adjust the air/fuel mixture from Idle rpm to about 1/8th throttle. Unplug the electrical connector and undo the two 10mm bolts. 4L L4 > Electrical-Connector > Idle Air Control (IAC) Valve Connector. i cleaned the maf, TB, and IAC opening not too long ago. Evacuate refrigerant from the A/C system. I want to clean it, but there is no. Rough idle or misfiring because the EGR valve is not closing and is leaking exhaust into the intake manifold. 4-Wire GM Idle Air Control (IAC) Valve Connector for Vehicles with Fuel Injection. Does this remove the hunting aspect? the rev speed might change but for the moment concentrate on the evenness of the tick-over. Idle Speed and Mixture Adjustment. Your idle air control valve is located right here. Second, putting your hand over the oil filler port and closing off the valve cover inlet vent will stop all ventilation air flow through the crankcase. When allowing maximum flow of air through the PCV valve the engine idle will speed up a little, and the fuel mixture will go lean, and it should have a slightly rough fast idle. It should be 10- 11 mm (0. Less than $50 (1) $100 - $250 (3) Series. Not enough fuel in carburetor. Remove the oil fill cap and fill with 10w30. Nissan / Infiniti Nissan OEM Idle Air Control Valve AAC IACV - Nissan 240SX KA24DE S13 S14 23781-53F12 Australian Dollar British Pound Sterling Canadian Dollar Chinese Yuan Euro Hong Kong Dollar Indian Rupee Japanese Yen Malaysian Ringgit New Taiwan Dollar New Zealand Dollar Norwegian Krone Philippine Peso Singapore Dollar South African Rand. To test for air leaks, remove the outlet hose from the auxiliary air valve and pressurize the hose with com-pressed air. 9 201 0766 DW200 series, 255lph in tank fuel pump w/ install kit for 240sx 89 94 and 91 01 Q45 >>> ACCEL 150824 Performance Fuel Injector review. Hello my sentra has very high idle rpms (2000 +) on start. Cleaning your IAC (Idle Air Controller) does not take long, and makes sense. Ok, so recently i noticed my car's idle was shitty and occasionally at stop lights/ signs it would die. 6 Test check valve vacuum control circuit. The idle control valve is responsible for maintaining a constant and consistent engine. Let it air dry or you can blow with compressed air. The EGR valve does not open under heavy load (I am unaware of any exceptions) and therefore, you will not be burning exhaust gasses while at wide open throttle. Intake Air Bypass Control Thermal Valve Test11-181. The air enters the AAV from the intake tract and routes the unmetered air thru a nipple on the IM, which feeds a cavity in the head behind the IM gasket, and then back thru the IMG and into ports in the. Parts Shop; VW Engine, Clutch; VW. 5L Montero Sports or 1990s Monteros can purchase a new Mitsubishi IAC for about 1/3 to 1/2 the cost of the same part from the dealership. idle air control valve cleaning media publishing ebook epub kindle pdf view id 838b42369 feb 08 was cold so i decided to remove my iac idle air control valve on. The following DIY will outline the parts you can remove (and the parts you can keep) on the S13 intake manifold when doing a KA-T build. Hello Everyone, I know IACV has been a huge topic on the forum and I have found various pictures in the RX forum and ES forum on the idle air control valve (IACV) or as others call it the idle speed control valve (ISC). This is what the problem is: I have replaced the plugs, pcv valve, the wires, the ignition coil, the cap, the fuel filter, fuel pump, catalytic converter, muffer, exhaust pipe to clear up a hesitation/stutter/lopey idle (around 400 rpm), and a slight miss. you should be able to remove throttle body and then remove iac. Idle air control valve 1 Answer. Which valve. This is a vehicle-specific issue. Remove throttle body pipe 6. Remove the idle solenoid valve from the right side of the carburetor (if applicable). When I approach light and take out of gear tach wavers around 1000 and drops then - Answered by a verified Nissan Mechanic We use cookies to give you the best possible experience on our website. After 25 years, the engine idle control on my 1978 Jaguar XJ-S was no longer functioning properly. Remove shaft by rotating motor (not seen in pic because it is behind flange). Early 944's and 944S/S2's used differing idle control systems. I have two good working condition E30 late model Idle control valves in fantastic condition guaranteed to work perfectly. Do not use the freon type air can normally used for computers. JDM NISSAN S14 240SX Idle Air Control Valve IACV AAC SR20DET 23781 69F10. 2001-) > Ford Workshop Manuals > Mechanical Repairs > 3 Powertrain > 303 Engine > 303-14 Electronic Engine Controls > Description and Operation > Diagnosis and Testing > Removal and Installation > Idle Air Control (IAC) Valve - 1. Air regulator stuck open, idle air control valve problems 90 240sx SOHC. Finally, remove the 10mm bolt anchoring the engine wiring harness to the idle control valve. There are 2 diverter valves and 1 vacuum control valve / solenoid. You have to unplug it in order to remove the intake ducting. use a 22mm wrench or u can grind out the slit in ur 02 socket OR u might be able to use a ajustable rech since theres more room. If your old idle air control valve gasket is still stuck on the intake manifold, remove and discard. Find many great new & used options and get the best deals for 99-00 Honda Civic B16A2 VTEC idle air control valve sensor IACV OEM 138200-0600 at the best online prices at eBay! Free shipping for many products!. , providing the finest in carburetor and fuel injection repair, restoration and rebuilding for Corvette, Chevrolet, muscle-cars and hot rods. Brand new OEM Nissan 240sx S13 & S14 KA24DE Idle Air Control Valve IACV AAC. It causes the flap to stick when the flap is nearly closed i. If need be, remove the air filter and back out the. The MAP sensor turns engine vacuum in the manifold into an electronic signal, telling the computer how much fuel to inject. The OEM thermostat opens in two stages. This is what the problem is: I have replaced the plugs, pcv valve, the wires, the ignition coil, the cap, the fuel filter, fuel pump, catalytic converter, muffer, exhaust pipe to clear up a hesitation/stutter/lopey idle (around 400 rpm), and a slight miss. checked at it came up with. There is a throttle body with an air vane controlled by a motor and a throttle position sensor to send feedback to the computer. 2,415 results for air idle control valve honda Save this search. The cleaning made a big difference. The valve is a major management component of the engine which will either decrease or increase the number of revolutions per minute, depending on what the current operating conditions call for. com offers the lowest prices for genuine 1995 Nissan 240SX parts. Make sure the mating surfaces are clean. What tool to remove idle air control valve from 2009 Toyota Corolla (1. You can remove the ICV but I'd say it's pretty unlikely that you'll get it back in. A Typical Idle Air Control Valve. The IACV ( Idle Air Control Valve ) is situated on the intake manifold and is responsible for regulating the idle when the throttle body is closed. Remove the engine harness connector from the IAC. This valve gets a lot of work -- you should always replace it. Clear Engine Check light. Resistance measurements on idle air control valve are in spec, but there is a big pit on one of the contacts. Idle Speed and Mixture Adjustment. ) If not as specified, perform the further inspection for the IAC valve. A: The ECU attempts to control the idle speed by opening or closing the ISC. Difficulty - Easy Time - Approximately 1hr Tools - 12mm socket, pliers, phillips head screwdriver, 2 small hose clamps (or small bolts to plug the coolant lines). The service manually states that I must torque the screws that hold both in place to specific levels. Cleaning and Resetting Your Idle Air Control (IAC) Valve Posted On : February 11, 2018 Published By : admin [sswfb_post_share] What you will need for the following procedure is carburetor cleaner and a wrench big enough to remove the IAC valve. IAC Removal 1. 4L 5VZ-FE Engines. Air control valves are fundamental components of any pneumatic system. Ensure the propane hose is securely connected to the regulator/compression valve. O rings are 8mm ID x 1.