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

  • Tiny
  • kevinenbom
  • 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?

Saturday, October 13th, 2012 AT 1:35 AM

4 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

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

Was this
answer
helpful?
Yes
No
Saturday, October 13th, 2012 AT 1:38 AM
  • Tiny
  • kevinenbom
  • Member

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?

Was this
answer
helpful?
Yes
No
Saturday, October 13th, 2012 AT 2:36 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

Re check all your connections and grounds.

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

Roy

Was this
answer
helpful?
Yes
No
Saturday, October 13th, 2012 AT 3:26 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,541 posts

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.

Was this
answer
helpful?
Yes
No
Saturday, October 13th, 2012 AT 3:26 PM

Please login or register to post a reply.

Similar Questions