. 01 SOHC 88,000. When I first start the car the idle jumps up to 2000 plus and eventually goes back down but then when you put it in gear it will basically jump back up and drive itself until it comes back down . You can be cruising down the road and let off the gas and it will keep going for several minutes before it actually lets up, when it does this I can pop it in neutral and the rpms are at 3500. It acts like the throttle is sticking but I see know signs of it and I’ve cleaned the throttle body and MAF sensor and also replaced the IAC,TPS and PCV . Any more ideas??