Engine will back fire and miss when started. If shut off and restarted right away it will run perfect until shut off again. Souds like it iis out of time. I have replaced the cam and crank sensors, o2, ECM, cap, rotor, plugs, coil and TPS. Also replaced the fuel pump. Pressure is at 40 psi. The timing is on and the wires check out. I have a hand held scope and every sensor checks out. I have checked all the grounds and they seem fine. I took it to the local Dodge dealer and they thought it was the cat plugging up. I had done a back pressure check already but I opened the system up and tried it. Same result. There is no SES light. I did swap the ASD relay. Does anyone have any idea what this could be?
have the same problem?
Wednesday, June 24th, 2009 AT 2:50 PM