The engine coolant temp sensor, and the idle air control valve may be dually the problem here, the coolant temp sensor, retards the injector pulse (fuel) if it senses the the coolant is too hot or too cold, not only that, that is where the temp gauge gets its readings from, also the IAC, (idle air control valve) obviously controls the idle, I would also clean the throttlebody and throttle plate too., Change the coolant temp sensor first then see how it goes. Proceed with the other things if you dont see any change in the idle
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Friday, March 12th, 2010 AT 8:10 AM