Collin wrote at 2012-05-07 17:26:26
if you umplug the iac and the idle goes down to 500 rpm or so, mostlikely a bad iac valve. BE CAREFUL OF AFTERMARKET VALVES! go to the wreckers and get one from there. the aftermarket ones have a very strong spring inside which makes the idle high.
gord wrote at 2012-11-28 19:32:50
or you can just get m.a.f. cleaner at canadain tire and clean it