Do I need to replace my PCM on my 96 Grand Cherokee Laredo V8 because of an open ciruit on injector 8?
Can my PCM be damaged by a temp short on one the 8 cylinders on my 1996 Grand Jeep Cherokee V8 5.2L? Friction caused by a hose chewed up the two wires conecting to the injector . The wires have been fixed but, there is still an open in the circuit according to my check engine light result. Before the problem was fixed the code reported was a P0208, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308. "Problem with circuit on injector 8", then random misfire , the remaing, misfire on all 8 cylinders. After the wire was fixed, ( connector), the only code is P0208 but, this time its says "open circuit on injector 8". So now, my question is, do I buy a new wiring harness or a new PCM.? And by the way I tested the injector its self and seems to be working. The resistance is the same as the other injectors.
Maintenance & Repairs - 2 Answers
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1 :
i would try and find a new harness at junk yard and try that before i change the pcm
2 :
Did you remove the negative battery cable to clear all old fault codes? That might be a "hard" failure that has to be manually cleared. If not check the wiring again and then try another wiring harness or switch the injectors to see if the problem moves.
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