the idle goes to 1200 when warm.if the idle varies or wanders the fast idle valve could be going.air flow is controlled by a wax pellet that melts and hardens again.sometimes after a while it can go bad.check for suction at fast idle port on throttle body.no suction or very very little should be felt from the port.also the #1 reason for idle problems is a vacuum leak.the #2 is abiuld up of crap in the iac and throttle polate assembly check those.get back to me.may ill have some more ideas.

acura tech
mark