throttle and idol problems!
I was driving my jeep today and was stopped at a red light. When all of a sudden my jeep decided to throttle itself. It only did it for a couple seconds and no check engine or codes came up. It also will idol rough sometimes, it will idol at a 900 and then drop down to 300 and the car will shake and then it will shoot back up. Was wondering if anyone else has had these problems or if anyone knows where to even start to try and fix the problem.