Weird Idle
 

Ive searched and dont Know if its the same problem Pugg57 had but evertime I come to a stop the drops down to 850 and then back up to 1100-1200 rpms and gradually drop back down. If I come to a stop and pull up on the gas pedal with my foot then it drops down to 850 immediately. Can anyone tell me what I can do so it drops and sits at 850 by itself. Thanks