WHAT ARE POSSIBLE CAUSES OF 1391 CODE AFTER REPLACEING BOTH CAM AND CRANK SENSORS?

2000 Dodge Dakota

Tiny

kevinenbom

October, 13, 2012 AT 1:35 AM

New reman long block was installed in the truck. The 2nd start of the motor resulted in 1391 code, although the engine ran great. Both cam and crank sensors were replaced and ECM was reset. Engine still ran great and again, on the 2nd start, the check engine light came on and returned the 1391 code. I am at a loss as to where to go next. Any clues?

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4 Answers

Tiny

ASEMaster6371

October, 13, 2012 AT 1:38 AM

To return that quickly, it is an electrical issue. Check all your wires for good connections.

Was this problem there with the old motor?

Roy

Tiny

kevinenbom

October, 13, 2012 AT 2:36 PM

It was never a problem prior to installing the new motor. Do you think it would be a grounding problem or an electrical feed issue?

Tiny

ASEMaster6371

October, 13, 2012 AT 3:26 PM

Re check all your connections and grounds.

Do you have a scan tool, not as code reader?

Roy

Tiny

Wrenchtech

October, 13, 2012 AT 3:26 PM

Pfrobably an issue with the wiring somewhere that was disturbed when the harness was moved around for the engine change, assuming you used the exact same replacement engine.

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