If the idling speed ia erratic then it could cause high fuel consumption but if the idling speed is correct, the IAC is ok. You can clean by spraying carb clreaner into the lower port of the throttle body which is into the IAC. Let it soak and wait for the carbcleaner to dry out before attempting to start.
I normally uses spurts when spraying with engine running and air cleaner hose off. Try to rev the engine slightly to prevent it from stalling.
Tuesday, January 20th, 2009 AT 8:09 AM