Have the IAC and throttle body cleaned, it should solve the problem.
January, 15, 2012 AT 8:34 PM
Thanks, cleaned the throttle body (used throttle body cleaner) and the sensor at top of air filter cover (used MAF cleaner). The idle is back to normal. I did not see how to access IAC, hopefully the throttle body cleaning reached the IAC?
January, 16, 2012 AT 11:46 AM
IAC is under the throttle body so while cleaning the throttle body if you had sprayed carb cleaner into the 2 lower ports, that would have at least partially cleaned the IAC. If the idle is normal without much differenece in idling when A/C is turned on or off, then there is nothing to worry about.