Sorry i thought i posted to this days ago. Look for some Throttle body/Carburetor cleaner and check on the label that it says its safe for sensors (may say safe for idle air sensor, mass air flow sensor ect). Just an extra precaution. On my 2000 plymouth i only seen the Idle air on the throttle body itself. I THINK there is a Manifold absolute pressure sensor in the ductwork somewhere. It's either before or after the TB but I can't remember. I may plop the car in the garage and pull the motor...having a lot of issues lately and take lots of photo's for DF. Have you had any luck since i seem to have been a ninny head and made you wait a week for a simple reply...lol.

Rob