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International Automotive Technicians Network
Re: Shouldn't IAC counts increase when a car is put in gear?
Posted to Technical Theory Forum on 6/30/2018

It was the rough and low idle when in gear. I've seen it many many times over the years. Even misfiring engines will reach a normal idle speed. Typically this problem is accompanied by a lack of high idle on cold startup. Drive by wire systems should easily go... Login to read more.