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Re: Shouldn't IAC counts increase when a car is put in gear?
Posted to Technical Theory Forum on 6/24/2018 6 Replies

The drive by wire throttle bodies have a maximum opening angle for idle that is programmed into the ECM. If the throttle body is coking up with carbon that maximum idle opening angle can be reached and the ECM won't open it any more without other parameters (A... Login to read more.

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