Dodge Repair Questions? Ask a Mechanic for Answers ASAP
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Can you share more details on the symptoms (ex. codes) and repair history?
Thanks for that information.
I noticed you didn't mention any codes which makes me agree with you that the problem could indeed be a faulty PCM, otherwise there would have probably been a bunch of codes. However, the fact that it runs well at times makes me think of a bad connection somewhere in the harness.
So, this is my advice: before you get a new PCM, make sure you take your time and go through the important connectors, such as those for the PCM, BCM, etc. And don't forget to take a close look at the wiring and connectors going to the crank sensor, MAP and TPS - sometimes an intermittently bad 5 volt reference signal can drive any mechanic crazy.
Please let me know if you have any other questions.