Ok.I really need a good tech here. Car runs fine for random amounts of time. Could be an hour. Could be for a week. Car will start to hichup and mis fire codes for all cylinders.P301 p302 p303 p304.(Driving with snap on scan tool hooked up. Not a random misfire. Have to pump gas like a mad man just to keep it from stalling. Mis firing the whole time. Turn ignition off and let set for 10-15 min. It will run fine again. Like a new one. For another randome amount of time.
I have replaced plugs, wires, ignition coil, ignitor, fuel pump, fuel filter, mass air flow sensor and idle air control valve.(Had code for iacv. That problem is fixed)
I have ran all tests available to me through the snap on scanner. Short fuel trim and long fuel trim are good. All the sensor test (map, mass, tps, coolent temp, ect) are all with in standards. Engine compression is good. This car runs like a new one untill it decides not too. You can NOT keep this car running when it is acting up to use scan tool. It just can not be done. Please help.I have gone as far as I can!
have the same problem?
Sunday, September 11th, 2011 AT 5:04 PM