Hmmm I have the same problem. But I have on 05 GP. Mine threw an O2 sensor code and I replaced that and still the same thing. Later I might check to see if the spark plug wire is touching it. The O2 sensor could have been doing it before and now its touching. I also cleaned my throttle body and it seemed to help a little. Sometime this week were gonna hook it up to a scan tool and drive it down the road and see what we find.