Mechanics

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

2000 Dodge Dakota • 22,000 miles

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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Kevinenbom
October 13, 2012.




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

ASEMaster6371
Oct 13, 2012.
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
Kevinenbom
Oct 13, 2012.
Re check all your connections and grounds.

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

Roy
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ASEMaster6371
Oct 13, 2012.
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.

Wrenchtech
Oct 13, 2012.

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