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Hi can you pls tell me where the idle controll valve is situated on a audi 2.6 1998 as my idling stay on a high rev and doesn't drop to normal since I had my battery replaced Thanks

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It should be located on the throttle body.

Posted on Jun 12, 2014

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Posted on Jan 02, 2017

cknn18
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SOURCE: audi a4 2.8 quattro idle valve

there is no carburetor on these cars , the idle air control valve is an easy thing to change it is on the passenger side near the firewall on the back of the engine buy the new one so you know what it looks like it has a wire connector on top 2 bolts and a gasket behind it just unhook it unbolt it remove the old gasket install the new one with the new gasket and plug it in simple there is no sealer required

Posted on May 09, 2009

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What is a problem my opel corsa lite 1.4 2006 model rev high when im stoping at the roboot or stop sign even if im not moving after i start rev go high to 200 and it drop down and up again


As long as the idle air control valve is working, ( I assume this is what you replaced, I would first check to make sure it is operating correctly), If it is, then Id begin searching for a vacuum leak

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Every time i start my car it sounds like the revs are high then settles to normal revs what is causing this


If the idle speed is above 2000 RPM then drops down to normal, the common cause is a faulty idle air control valve or a dirty throttle body.

Jul 04, 2013 | Cars & Trucks

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1987 Toyota Camry. Idle doesn't drop. Stays very high. No clue why. Also goes through a lot of gas and found out muffler and catalytic converter aren't hooked up. Ideas of where to start?


check your vacume hoses and if iyt has an idle controll valve that is off of the air intake. that should be the only things that would effect it

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When I start the car it stays at 2000rpm for a few moments then drops down. I'll drive for a few minutes then put it in park and it revs up and down.


idle air control valve is bad replace it. at start up choke control runs till warm up while driving throttle opening controls engine at idle ,the idle air control valve.

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How to fix this problem?


A big vacuum leak will do this it can be from a open PCV valve sticking open EGR valve to a sticking a IAC (idle air control valve) sticking open. You basically have something get stuck and closing.

Mar 09, 2012 | Cars & Trucks

1 Answer

,battery went flat, car sat for 2 months,idling too fast and lumpy, on start up and doesn't go back to correct idle, revs high when changing gears


Possibly faulty idle air control valve or vacuum leak. Hard to tell without actually looking at the car, but start by looking for vacuum leaks.

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When my civic is idling it goes up to 1500 revs then drops back to 800 revs and continues to go up and down like this even when the motor is up to temp


Hi, have you looked for a vacuum leak around engine you should be able to hear a hissing sound if you have a vacuum leak. If no vacuum leak, try unplugging your idle air valve,if it idles down to normal replace or take off and clean very good. If i can help you more just re post

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Too fast idle running speed.


Typical idle for this motor is right around the amount you have described. Check to see if any check engine lights are on, or if the ABS light is on. A typical issue with this motor is the OVP relay that when not operating properly causes the engine to rev much too high (~1500-2000). Also do your revs drop significantly when you put the car into gear? If not then there really isnt an issue. When the motor is idling too high and you stick it into gear the car will typically lurch really hard.

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