Tell me my friend who is pulsing the injectors to keep it running w/o the PCM and where is the PCM getting its ignition reference signal.
If a misfire in a specific cylinder should lead you to check the spark plug, fuel injector and compression
Maybe try checking the CPS and a failing ASD relay-this one powers the coil and the fuel pump. Example: if a component requires a full battery voltage and its only getting 6volts it will not operate properly maybe you should check the voltages to the coil and pump and do some voltage drop tests.
Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
I have had all the ignition components replaced at least twice-What are they?
Friday, May 4th, 2007 AT 7:24 AM