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Re: High idle on each start
Quote:
Originally Posted by Boog
Can this iac operate "out of range" so to speak?
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The minimum air rate (throttle stop screw) does not have to be in perfect adjustment.
You don't want the IAC count to every reach zero which means the IAC is all the way closed but the engine is still running faster then the ECM wants it to.
If the minimum air rate is to far off the other direction the engine will tend to flood or load up badly on a cold start.
What brand oxygen sensor did you use?
Does the stumble only happen after the engine warms up?
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For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
Last edited by ChevyTech; 08-26-2022 at 12:13 PM.
Reason: spelling
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