Question about 2004 Jeep Grand Cherokee
Had the check engine light come. Diagnostic pointed to an open injector on cyl 3. Engine has an intermittent miss. It does not seem to be related to engine temp or atmospheric variables. I changed the injector on # 3 cyl. but still have the problem. Could it be a faulty PCM or perhaps in the wiring harness? Mileage approx 115000.
It could be a faulty pcm or wiring as you stated in you post. the pcm pulses a ground to the injector circuit allowing the solenoid in the injector to activate momentarily are inject fuel into the intake. if you give me the engine size. V8 4.7L or strait 6 cylinder 4.0L and i will post the proper wiring diagram for the fuel injectors to help you out with your battle
Posted on Jan 10, 2009
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Posted on Jan 02, 2017
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