Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi, my name is ***** ***** I will assist you. Have you done any work to address this concern yet?
I would definitely start with the auto shutdown relay. It should be clearly labeled as ASD relay in the underhood fuse box. This relay is responsible for providing power to all injectors and ignition coils simultaneously, then the computer provides ground side control for pulsing each. Swap it with another relay and see if your problem persists...
Oh, no problem pal...great minds think alike :-). The next step would be to check for power on the injector harness and work backwards from there. Have you done this already?
I would agree that with power on both harnesses and no ground signal that the problem would lie in the computer...the only issue is that it seems like there may be a secondary input that is causing it since they all utilize separate drivers inside the computer but none are working.
I know you said that you installed new cam and crank sensors...have you checked their wave patterns on an oscilloscope?
If you have access to an oscilloscope it would be very useful to see if they are providing good consistent wave patterns to rule that out completely.
The only thing that can cause the problem you are describing is a bad pcm or a lack of signal from either the cam or crank sensors. See if you can borrow an oscilloscope to check it out
Check all the reference circuits from the pcm to make sure that you are getting all the proper references to the cam and crank; this can be done without an oscilloscope. Also, you may want to pull off at least the cam sensor and look at the camshaft sprocket and see if there is anything blocking its ability to read the tone wheel.