...runs great while driving? My jeep will not idol the way it should, I have relaced just about every sensor, plugs, wires, cap, coil, injectors and ran fuel injector cleaner through it also, the only sensor I have not replaced is up by the thermostat and I don't know if that will cause it to stop spitting and sputtering, everytime I replace a part and then take it for a ride and think oh yeah its fixed it and then I shut it off and start it back up 10mins later and it starts to idol rough.. I am broke and going crazy and don't know what to do any more.. Can a crankcase sensor or a camshaft sensor cause this problem? plz help me and my poor jeep, thank all of you for your help, Mick934.