I have a 1989 Dodge Raider 3.0 L V-6 ( rebadged Mits. Montero) It has a high Idle (around 1500 rpm)If I disconnect the tube into the air flow sensor the idle will drop to 750. I have subbed out the ECU and checked the Idle Position Switch to the manual. They both check fine. The Aif Flow Sensor isnt cheap enough to replace if it is still good. Is there anything else I can check?
thank you in advance