PCM issues?
#1
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Location: Cedar Falls, Iowa
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Year: 2001
Model: Cherokee
Engine: 4.7L v8
PCM issues?
I have a 2001 Cherokee Limited with the 4.7L V8. I got a P0202 Injector Circuit Malfunction - Cylinder 2 code (only code shown). My jeep barley starts and when it does it sounds like its missing bad, RPM's float between 600-1000.
So far I have changed all spark plugs, coil packs, injectors, fuel filter, cam positioning sensor, (not the crank yet since i've heard its a *****) and a couple sensors on the intake. I am still getting the P0202 Injector Circuit Malfunction - Cylinder 2 code...
I've inspected the wiring on injector 2 and it doesn't seem to be an issue, I'm looking at replacing the PCM, think this will do the trick?
So far I have changed all spark plugs, coil packs, injectors, fuel filter, cam positioning sensor, (not the crank yet since i've heard its a *****) and a couple sensors on the intake. I am still getting the P0202 Injector Circuit Malfunction - Cylinder 2 code...
I've inspected the wiring on injector 2 and it doesn't seem to be an issue, I'm looking at replacing the PCM, think this will do the trick?
#2
Old fart with a wrench
Back-probe the #2 injector plug and see if you're getting an active pulse signal. It could be as simple as a bent pin on the PCM harness or a bad solder connection.
Don't condemn the PCM before you check out your electrical circuits. The problem is NOT ALWAYS components.
I can't figure out why you changed all the ignition stuff when the code was for the injector.
Don't condemn the PCM before you check out your electrical circuits. The problem is NOT ALWAYS components.
I can't figure out why you changed all the ignition stuff when the code was for the injector.
Last edited by dave1123; 12-10-2015 at 09:42 PM.
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