Question about 1996 Plymouth Grand Voyager
The coil pack unit's circuit #3 drives plugs #3 and #6 directly from the PCM. If the cam sensor was defective, it should not fire any plugs. Suspect bad wiring from the PCM to the coil pack, the PCM unit itself, or a segment of the camshaft position sensor surface has lost magnetism causing missing signal to the PCM. An oscilloscope is the best test instrument for chasing down a missing pulse problem. The missing timing signal also explains why the PCM would report a 'bad camshaft sensor'. Hope this helps!
Posted on May 12, 2010
Testimonial: "I appreciate the in depth explanation of what could cause those specific plugs not to fire. I was told to maybe try changing the crankshaft pos. sensor. I figure it can't hurt. Thanks a lot."
What actual test was done,to confirm that two cylinders are misfiring.
I believe,if that were the case,you would have an O2 Sensor Code,because it couldn't swing far enough, to correct two cylinders ,fuel mixture.
Was the Cam Sensor tested or you just threw one on.
Never replace any parts,until you test and confirm the need to replace,due to failure.
I would do a cylinder leakdown test. I suspect you have mechanical issues,effecting the two cylinders.
Or two dirty injectors,which seems unlikely
Also,maybe a vacuum leak,causing the misfire. Check intake manifold gaskets
Posted on May 11, 2010
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Posted on Jan 02, 2017
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