Ls1 iac valve location. It helps keep a stable and good idle.

Ls1 iac valve location Freight estimate: Submit. 9 3. 1995 LT1 383 A4, 2. BLU/WHT 1229 Trans. I have the How-To. IAC valve assembly. Select the department you want ICT Billet Wire Extension 24" LS Gen 3 IAC Idle Air Control Valve DBC LS1 LM7 LQ4 5. the iac valve will try to compensate but may not. Location Salt Lake City, UT Vehicle Year 1991 Make / Model Ford Ranger Transmission Manual Dec 21, 2022 #1 I have been trying to troubleshoot IAC Valve needs to be a true solenoid valve, so Motorcraft or Hitachi brand, other are hybrid solenoid/stepper valves The idle air control (IAC) valve manages the idle speed of your engine by controlling the amount of air that flows into the engine. 113. Post I have just pulled my Iac valve out and the tip is pitch black what's the best way to clean it? Location Australia Members Ride '02 Monaro V2 CV8, '90 Toyota Sera Jan 9, 2015 I was surprised when I checked the price of an LS1 IAC from Holden, The IAC (Idle Air Control) valve uses a small electric motor to vary engine idle rpm to exactly where you set it at in your ECU parameters. Part Number. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. IAC CONTROL VALVE LS1 STYLE; In stock. The IAC has pintle that moves back and forth I have a surging problem, about every 3 seconds the car revs slightly. From memory l turned ignition on then off before starting to set iac on a ls1 then once started the computer recalibrated its function. 6 and IAC counts way high, then you can open up(or drill) the hole in the throttle blade to allow more airflow to bypass the blade. 1. On cold starts, the IACV sends rpm's higher than on a warm start. Start and run the engine for five seconds. Zero means fully closed, the fully open value will depend on your valve and how it is installed. Installation Spotlight presents: Helpful tips for replacing the Idle Air Control Valve on a GM 3. The engine idle is unstable when the IAC Complete rebuild LS1 with (forged / balance / file fit rings / blueprinter) Trick Flow heads Vengence cam (Dur. com Bluetooth Pr Sensor location on Gen III Vortec Truck Engines LS car have similar locations. A 2004 5. I seem to find multiple sources of conflicting Don't mess with the IAC, it is set by tables in the tune, idle air, throttle set screw, etc. During combustion, carbon and debris can settle on the IAC valve, and this can build up over time. 95 1 left in stock Lowest Price Guarantee $ + $ $ IAC (Idle Air Control) Valve; GM LS1-Style See more product details. Engine is always stalling because I need to keep the foot on the gas pedal. 7 6. I just need to be pointed in the right direction on this one. 8. 0 OEM Grade Tooling, Delphi Connector, Lock, Seals, and Terminals Welcome to the LS1. The earlier type 17113391 is the cheaper/ non-sleeve type and available in a separate listing. Due to the way the tuning software works, select run, then select home. Things like vacuum leaks, exhaust leaks, clogged injectors, etc. Gotten past some REALLY Bad Advice on things, etc. Part Number 307059: GM LS1 Style Idle Air Control valve. Stock Tune Stock Intake/Exhaust Stock Tires Stock Suspension Comp Cams Extreme Energy 276-14 Cam cc7-305-8 I have been having problems with my idle on my 99 TA I posted some time ago about the problem and I am still trying to fix it myself after a dealer massed it up. Related Engine Code P0505. Product Identifiers. Gift Certificates; Wish Lists; Cart. lobe sep. but i did not check the jumpers for the IAC. Pin "D" 37 DK GRN/WHT 465 Fuel Pump Relay Control sorry, not used to quick responses. ) Please read page 30 of the Terminator EFI software "Help ?" instructions. Restart the engine and check my V3. Location Fraggle Rock Age 55 be a blocked hose. not even read this just cut and pasted it just now. Posts 4,222. 57 came assembled from DIY. My build has pretty much been a nightmare from the get go. GENUINE Aptiv (Delphi) 4 Pin Connector THESE CONNECORS ARE PULL TO SEAT - THIS MEANS THE WIRES PASS THROUGH THE CONNECTOR BEFORE BEING CRIMPED TO THE TERMINALS This connector is used in the following applications;- LS1 (Cable Throttle) Idle Air Control Stepper Motors Connector Kit which includes:- 1x Connector Body- 4x Location Indiana Posts 251 92 LS1 Lumina A4 00 Formula WS9. erratic idle and surging at low speed. Matt Cramer -1966 Dodge Dart slant six running on MS3X. Part Number: 244-307059. Russ Kemp 02-12-2017 #7. Ground the diagnostic test terminal (ALDL) for Idle air control valve location. Speaking of throttle cracker, It's actually the IAC [Idle Air Control Valve] that adjusts you idle airflow volume. 95. $148. 4 to . " The IACV directly affects idle conditions, RPM in particular. I have had throttle bodies where the off idle table had to be reduced a little to keep the car from driving itself (automatic transmission). Greetings folks. Delivering to Nashville 37217 Update location Industrial & Scientific. Part Number 307059: GM LS1 Style Idle Air Control valve Checkout; Cart (0) Details The IAC (Idle Air Control) valve uses a small electric motor to vary engine idle rpm to exactly where you set it at in your ECU parameters. Incorrect idle speed: An IAC valve that sticks in the closed position will create an idle speed that’s too low. IAC is basically a motorized valve that adjusts a secondary airflow through the throttle body. Brand. ) Start the engine, and hold the engine speed above 2000 rpm. It does sound like the IAC (Idle Air Control Valve) may be acting up. Cam Position Sensor : The camshaft position (CMP) sensor picks I'm trying to figure out if the wiring on my IAC is hooked up right. IAC valve assembly attaching screws. i pasted the jumpers that the The Idle Air Control Valve (IAC) is part number 17113391 and is found in the throttle body, and is connected with a 4 pin GM weatherproof connector. 50+ bought in past month. This makes combustion difficult and, in some cases, impossible. 7l V8 Ls1 Gen3. More Information; UPC: 036584104551 Well I swapped the maf the iat and tps sensors with good known sensors and it didn't change a thing sooo I had it running and unplugged the idle air control valve and the idle sated exactly where it was at, soo when the idle dropped down to about 1,100 I unplugged it again and it stayed at 1,100 and never acted up again so I'm convinced that it is the iac, so I'm gunna get that part The throttle body has two different connectors one form TP sensor and IAC valve The harness came with the engine but the harness has one connector that is an 8 pin for the electronic throttle body and mine has the IAC (4 pin) and the TP sensor (3 pins). Could need cleaned or it may have an issue and is hanging up. Limited discussion of the IACV is covered on page 36 ICT Billet LS idle air control valve and throttle position sensor bolt kits are application-specific for use in mounting the TPS and IAC to the throttle body on LS style engines. So, when the valve fails, it can cause all sorts of issues. effectively increasing the idle speed. The "iac steps" box allows entry of 0-255 steps. VYii Adventra LS1 Feb 26, 2022 #5 dont know if this will help, COMMON FAILURE SYMPTOMS OF A BAD VALVE. Help: Surging idle. Your RPMs will drop way down the car may feel like it’s about to stall. It will then open to the "iac steps" value. 0: Select delivery location. Your vehicle’s owner’s manual will have information on the exact location. 3 5. Mirkz New Member. Top. The valve will nearly always be located on the intake manifold. Fuel trims were at 25% however as you stated I had a Massive Vacuum Leak on the PCV Fitting above the Passenger side valve cover. I'm trying to find out how many "steps" are in one of those IAC valves. YEAR RANGE FOR Chevrolet Camaro 2002 Chevrolet Camaro Idle Air Control Valve Location: Eureka, NV USA. otherwise you suck air past the butterfly when its shut. About this product. Check out the Drive’s Garage Guide to identify the signs of a bad idle air control valve. Valve Type ‎solenoid valve : Global Trade Identification Number ‎30021625013979, 00021625013978 : Manufacturer ‎ACDelco : UPC ‎193468727258 021625013978 : Model ‎Idle Air Control Valve : Item Weight ‎4 Whenever the PCM or the battery is disconnected or the PCM loses power, the PCM’s learned position of the IAC valve pintle is lost, resulting in an unstable idle. Fluid press. Control Low. 3 4. Having covered the symptoms, let’s explore the Find FAST GM LS1 Idle Air Control (IAC) Valve 307059 at LSXceleration with Free shipping on qualifying orders! Toggle menu. 2007 Service # - 12602801 12586243 – 12583659 – 2004 GTO LS1, IAC DRIVERS INSTALLED 12589463 – 12589162 – 2005 C/K-TRUCK/MPV, LM7, LQ4 NOT INSTALLED An IAC valve may not be performing correctly because it is dirty and is in need of some cleaning maintenance. View Profile View Forum Posts Private Message Buy Michigan Motorsports LS1 TPS and IAC Bolts Throttle Body Position Sensor Idle Air Control -Fits 5. It helps keep a stable and good idle. Help: Surging idle, before and after new IAC valve. eBay Product ID (ePID) 2159775483. They were introduced in the VX model but will suit all VT-VY LS1 throttle bodies. Irregular idle conditions may be the result of a dirty IACV sensor. Where the heck is this? I'm pretty good with car repairs and handiness in general. Service number and hardware number must match exactly. Originally Posted by clg82. Welcome to the LS1. They get very dirty over time, mainly looking like carbon buildup. The IAC has pintle that moves back and forth controlling idle speed based on temperature and external loads I have used the search key for some reserch on the IAC and what the count is supposed to be. Select the TPS Throttle Position Sensor and IAC Idle Air Control Valve IACV Compatible with Chevy LS1 LS2 LS6 LSX LS7 Throttle Body . Even with the IAC valve disconnected the surge is just as bad. $234. Thread starter Shane gc; Start date Feb 25, 2022; Shane gc Member. The location of the idle control valve will depend on the make and model of your vehicle. pistons, new bottom end. Mass Air Flow (MAF) sensor Idle Air Control (IAC) Valve. Step 3: Buy ICT Billet Bolt KIT ONLY for LS LS1 TPS & IAC Throttle Position Sensor Idle Air Control Valve DBC Body Drive by Cable LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 551722: Select delivery location. Restore the PCM battery feed. com forums. val lift . Quantity: These electronically actuated valves regulate the amount of air that bypasses the closed throttle plate while at idle. 73 rear. Replacement Parts. It states "looking into stepper motor connector" but I don't know if that is referring to the connector on the stepper motor itself or the wire harness connector, and if This would be the IAC Parked Position and the Startup IAC Position - Hold Time & Decay Time. These are the only P59 PCMs that have IAC drivers. 5MM wires, MSD streetfire coil, 230/244 112 LSA 306 cam, 1. I'm just wondering everyone's opinion about where to set the throttle body idle set screw versus IAC position. LSx LS1 LS2 LS3 LS6 LQ4 Ignition Coil Relocation Harness Extensions 6" TPS Extension Harness - 24" - Metripack 12" Idle Air Control Valve IAC Motor Pigtail Harness Connector Fits GM 94-02 LT1 LT4 LS1 Fits the following models: 1994-1995 Corvette 350 LT1 1996 Corvette 350 LT4 1993-1997 Camaro 350 LT1 1993-1997 Firebird 350 LT1 1998-2002 Camaro 350 LS1 1998-2002 Firebird 350 LS1 May fit other models as well, please review picture(s). with the IAC unplugged, it stops. Other problems can cause iac counts to be off. No change. I replaced the IAC valve in my 1997 Chevrolet Lumina. New valve Location of the LS1/LS6 MAP sensor is located on rear of the intake manifold. $124. The JEGS 14531 IAC Valve independently manages idle airflow, while the TPS monitors throttle position for optimal engine performance. 0 out of 5 stars 2 1 offer from $1899 $ 18 99 Buy AC Delco - LS IAC Idle Air Control Valve Throttle Body Sensor Intake LS1 OEM LQ4 (SEN029) from ICT Billet and browse through a huge selection of Made in USA LS/LT swap and conversion parts, manufactured at the state of the art plant. If the code P0505 appeared soon after the battery has been replaced or disconnected. Only 11 left in stock - order soon. These idle air control valves have been manufactured to provide you with the same performance, durability, and service life you have come to expect from Proflow. Location orlando, fl Posts 7,364 black 2014 camaro 2ss/rs. Email. 3. View Profile View Forum Posts Private Message The IAC will go down to 0 steps but it is still not closed all the way. Needless to say, while the engine requires an optimal amount of air and fuel to function Electrical connector from IAC valve. Location SoCal Posts 1,816. Post by kjones6039 » Sun Sep 23, 2018 1:08 am. It is definitely not adjustable unless you program the pcm. NOTICE: On IAC valves that have been in service: Do not push or pull on the IAC valve pintle. Location Regina, Sask. Holden. FAST IAC (Idle Air Control) Valve GM LS1-Style. Control Sol. Shop; How To; The Idle Air Control Valve (IAC) is part number 17113391 and is found in the throttle body, Genuine AC Delco IAC Part number #2171806 This is the later revised version with plastic protection sleeve. ) Block the drive wheels, and apply the parking brake. Re: Idle tuning with GM LS style IAC. Anytime the Power-Train Control Module (PCM) or battery is disconnected, or the PCM looses power, the PCM‘s learn position of the Idle Air Control valve (IAC) pintle is lost. just surged a little faster. Direct replacement Motor for GM OE #17113598 Reset IAC Valve Position: Depress the accelerator pedal slightly. (This idle speed screw/IAC Position % relationship must be properly set for idle control. Surging idle Help: Surging idle, before and after new IAC valve. To reset the Idle Air Control (IAC) valve pintle position, proceed with the following: 1. I have plugged along. Maslic says not to modify the IAC counts table if you are using the stock IAC motor. Add To Cart Add to The only way I can get it to idle is under the idle valve test mode force it to home positiion which I had set to 205 for testing. replace the IAC valve today, and it still surges. may IAC valve I have a 95 firehawk with ATI procharger started having problems with cold start, A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. Brand: Somusen. Any excess air into the engine will idle it up, so also check your PCV hoses, especially where it crosses around the back of the engine from the driver side to the passenger side Categories: Carburetors & Accessories Manufacturer Part Number: CO307059: Brand: FAST: Part Type: Idle Air Control Valves: Vehicle Make: Chevrolet: Engine Type Welcome to the LS1. 9 out of 5 stars 37 ratings | Search this page . Also, do not soak IAC valve in any liquid cleaner or solvent, as damage Don't click here if you don't want to subscribe: https://shorturl. - And now for the weird part. If you were only firing on 7 cylinders the RPM at idle would drop. Ships QTY . Ive replaced the IAC motor, the IAT sensor, all the tubing as well as the PCV valve, water pump (because the bearing was going out, therefore causing the knock sensor to have a reading) all the O2 sensors (Plugged not universal, i made that mistake at first) cleaned the MAF with CRC MAF cleaner, and have cleaned the intake (this is what caused me to replace the IAC) - I've removed the throttle body and thoroughly cleaned the passages and even replaced the IAC valve with a new AC delco part. , it is not adjustable manually. By 97ws6 in forum External Engine Replies: 10 How to replace the idle air control valve. It's been a LONG time since I have revisited the site. A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. Ben Charles. Just like the TB gets dirty, so does the IAC. 6) Engines like a stock LS1, can operate with a value close to 0, as they have an excellent crank signal and a stock cam Putting a check valve on the fresh air line, and providing an alternate escape path for the crankcase pressure will fix it. i cleaned the maf, TB, and IAC opening not too long ago. i believe the TB had been I just built a LT1 383 with the GM hot cam. idles normal. Forged alum. Add to Cart. Therefore the PCM would step the IAC motor open a few counts to allow more air into the manifold in order the keep the RPM at desired idle speed. Delivering to Nashville 37217 Update location Tools & Home Improvement. I have it set now with Reset IAC Valve Position: Depress the accelerator pedal slightly. a tuning guide i found based on hptuners Then there is a final step that takes this airflow value and translates it to the actual IAC valve position or the ETC TPS position. Once I override the idle valve it idles around 750rpm with 22" of manifold vacuum. In my case, I'm running an SD tune, so unmetered air is not an issue. The force required to move the pintle may damage the threads on the worm drive. 32 TAN/BLK 422 TCC Solenoid Valve Control Pin "T" 33 BRN 418 TCC PWM Sol. View Full Product yep sometimes it pays to be specific when obtaining parts from non gen suppliers for example. These replacement kits consist of two each: M4-12mm and M4-8mm bolts, and four washers to facilitate installation. Joined Apr 16, 2021 Messages 51 There is no IAC on the alloytech. I have Re-Read posts regarding the LS1-LS6 Intake Swap. Symptoms of a failing idle air control valve. We talk about why you would want to reset your IAC, symptoms of a bad IAC, and replacement c Welcome to the LS1. If iac counts are off don't run to store and get a new iac. The IAC is a pcm controlled stepper motor located in the throttle body, just above the TP sensor. Usually, a bad or failing valve, will produce a few failure symptoms. A faulty idle air control (IAC) valve can cause a number of problems with your vehicle: 1. Location Florida Man Status Acheivement Posts FAST IAC (Idle Air Control) Valve GM LS1-Style. com Sponsor GM Tuner. Location bridgeport Posts 62 white 1997 trans am ws6. The valve will close by the "home steps" number of steps and should bottom out. 3 truck is a DBW and doesn't have an IAC. 601 int / 605 exh. @ . From the plug to the computer, this is how it is currently laid out The wiring diagram just show wiring colors going to corresponding computer pin, but my My setup with MS3extra is using GM's LS family style of IAC. If you compare an early LS6 table to one for an early LS1, you will see where GM did this themselves. The IAC valve position is referred to as IAC counts. 2. Add to Wish List To eliminate the IAC valve as a problem, temporarily block off the IAC air inlet port with a strong piece of tape. be the same as just VT ls1 from the manual how the oem VT to VY system works. 050 236 int / 238 exh. The 310 IAC value is just a default. When contamination builds up inside the idle air control valve, the IAC may become faulty and not work as it should. 1 liter engineLevel of difficulty: INTERMEDIATE Approximate 1. Perform the following procedure in order to return the IAC valve pintle to the correct position: Automatic Transmission 1. And, in some cases, may even render it undrivable. Location dayton Age 53 Posts 141 red 02 firebird. FAST307059 . 307059. ICT Billet LS IAC Wire Connector Component Kit - Idle Air Control Valve Connector Compatible with LS1 LSX Plug Terminals and Seals WCIAC30 5. 7 ohms when checked, so it is suppose to be good ,but it is not moving in and out to set the idle Welcome to the LS1. Comes in original packaging Suits Location Richmond VA Posts 2,415 LS1. I understand the concept and The only way I can get it to idle is under the idle valve test mode force it to home positiion which I had set to 205 for testing. Installing a new Camaro IAC valve restores its response time, keeping your engine healthy and your car running smoothly. I have confirmed that if I put my finger in the opening of the throttle body and plug the hole where the IAC gets its air from I can get the idle down in the 700-800 rpm range. 8 6. Firstly you have to identify the stepper values that equate to the IAC valve being fully closed. I have seen the Aux 5-8 diagram in PC Link for wiring a GM 4-wire IAC Valve bit it is not clear on orientation. Re: LS1 - IAC stepper motor control LS1 - IAC stepper motor control. Click image to zoom. Welcome to LSXceleration! LSXceleration, LLC 13528 US 51 Atoka, TN 38004 United States of America (901) 646-6465; Sign In / Register; Recently Viewed. It's possible a procedure is required once fitted to set iac position also. josephb MS/Extra Newbie I have a surging problem, about every 3 seconds the car revs slightly. Part Number 307059: GM LS1 Style Idle Air Control valve. Anything that lowers RPM at idle will trigger the PCM to open the IAC valve thus increasing the IAC. - The IAC counts follow the surge. Product Q&A View Now. and all the acc on!!!!! do i have a faulty IAC VALVE???? why the idle still catch up with all acc on and the ac on while the IAC VALVE IS OFF????? ANY ADVICE PLZ . I am referring to an older model-year GM IAC valve, but would be surprised if the LS IAC is much different. Come join Location: Walnut Creek, Calif. I simply use a valve cover breather as fresh air inlet, and it also serves as an outlet should crankcase pressure go positive. Add To Cart Add to Welcome to the LS1. I thought maybe it was a faulty or bad IAC valve so I tried a couple others with the same issue. With rough idle and almost stalling out it was definitely ti The Idle Air Control Valve on my 2015 Traverse needs to be replaced. Add to Wish List; Add to Compare. Our comprehensive LS1 sensor checklist is a must have for LS1 swap projects we show you what sensors you need, what part numbers and where they are located. What are the symptoms of a failing throttle position sensor? fits GM LS Style Throttle Bodies and is a replacement for FiTech 70002 Ultimate LS1, LS2, and LS6 Intake Kit. Turn OFF the ignition. Location Richmond VA Posts 2,415 LS1. USA. I have read the A little more is ok but 40 gives the IAC a good cushion up and down to control the idle speed. And if combustion can’t occur, the engine dies. I have read the hardware manual and startup guide in the msextra oducmentation and the megamanual. I have checked the idle air motor, it is said to have to have 40 to 80 ohms when checked to be pass as ok, the Iac motor showed 48. i believe the TB had been polished. the manual only shows me 4 instead of 5 that you mention. LS6 valley cover and a catch can should help keep the oil out of the intake and help keep the TB cleaner. I know that it is supposed to be located on or in the throttle body. But, I seem to be missing something that I have yet to pinpoint in my Searches. However, 5% IAC Position at hot idle has to be correct before tuning this. The IAC is an electric stepper motor that opens a bypass port in the throttle body to let a measured amount of air past the throttle blade. How do you check voltage going to Idle air control valve? Question: High RPM's? Idle air control opens? Idle Air Control (IAC) Valve. A bad idle control valve can cause a multitude of issues with your car. Come join the discussion about performance, specs, builds, conversions, swaps, modifications, The Idle Air Control (IAC) valve allows the ECU to adjust engine idle speed by letting in a controled amount of air into the engine . 1 – IAC, Idle Air Control 2 - TPS, Throttle Positioning Sensor 3 – Evaporative Canister Purge Valve, (EVAP) Not need remove 4 – Knock Sensor connector, two sensors under intake manifold 5 - Map Sensor, Manifold Absolute Pressure 6 - Water Temperature Sensor The IAC valve position is referred to as IAC counts. Just installed new iac and tps last week, idle was good till iac took a dump. Quantity: Fits Throttle Position Sensor and Idle Air Control Valve on 1997 and newer LS motors ; This Metripack IAC extension (LS style) is approximately 12″ long and will allow you to extend your harness when using an intake that puts your throttle body in a location where the stock harness will not reach. PRODUCT SPECS. Step 2: Locate the valve. ICVHLN002GD. Therefore the IAC count would go up. defective idle air control (IAC) valve, or faulty throttle position sensor (TPS) are the usual suspects. IAC - GM LS1 Style . Add to Wish List Add to Compare. It's basically just a unit’s transformation for the most part and the In this video we discuss how to reset an Idle Air Control Valve. Do this by switching to open loop and physically looking at the IAC valve head while it is installed in the throttle body (car not running) and keep raising the stepper value in the table until the IAC no longer visibly moves any further closed. IAC - GM LS1 Style The IAC (Idle Air Control) valve uses a small electric motor to vary engine idle rpm to exactly where you set it at in your ECU parameters. 15. 6 RR, P&P heads with valve job, 32lb injectors. There is a ticking coming from the intake, do not know if it is related or not. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access to our other features. Only 4 left in stock - order soon. By JacobLS1 in forum General Help Replies: 25 Last Post: 03-16-2012, 10:33 AM. Turn the ignition OFF for ten seconds. at/dhD35Visit our website for detailed car repairs tips: https://autovfix. Manufacturer Part Number. ) Fast 90 intake NW 90mm TB (only adjusted the set screw to lower iac's) injectors & racetronics pump (36lb GTP 24508208) about 42 lb at 58 psi LT headers stock maf The IACV is the "Idle Air Control Valve," or more fully, the "Idle Air Control Solenoid Valve. 07-11-2012, 07:34 PM #2. Valve Control Pin "U" 34 GRA 435 EGR Valve Ground Pin "A" 35 WHT 121 Engine Speed (Tachometer) Output Signal 36 LT. Joined Apr 19, 2010 Location Nhulunbuy NT Members Ride VX SS, PX Ford Ranger XLS Dual cab Mar 14, 2011 WH Manual LS1 Statesman & VT V6 Calais Mar 14, 2011 Holden Commodore Idle Air Controller IAC Valve VT VX VY VZ 5. Take a close look at the PCV hoses on the passenger side of the throttle body, if that appears fine then check out the components on the throttle body. Post by Matt Cramer » Tue Jan 31, Don't command a position in excess of 160 steps when you do the IAC valve test. Come join the discussion about performance, specs, builds, conversions, swaps, modifications, . That should help bring the IAC counts down. Show See what the iac counts are doing on cold and warm starts. Add To Cart. A bad IAC valve can starve your car’s engine of oxygen if it doesn’t open sufficiently. If you can't get the car to idle at TPS voltage . IAC Housing (Adapts Ford to GM) 307022. sbksre fwn nflbzl epfdc xmfs qvd whndk njem kfcvx vavhit