P1391 on 98 Dakota 5.2L
Thread Starter
Joined: Sep 2005
Posts: 4
Likes: 0
P1391 on 98 Dakota 5.2L
I had my 5.2 engine replaced about 1000 miles ago with a reman. Since that time, it has been raising a P1391 code - intermittent loss of camshaft or crankshaft position sensors.
Engine runs great at all speeds.
Ok, easy I thought. I replaced the crankshaft sensor first, becuase it appeared to not work when i manually turned over the enginer while back-probing the sensor. No dice.
I then replaced the camshaft sensor. No dice.
Both sensors are getting the 5V in, so now I am stuck.
Am I looking at an intermittent short possibly? One intersting thing I noticed. In 2 recent trips to Florida, the code would clear after a day or so driving there. Once I returned to Ga, it comes right back. Thought maybe it was due to heat or humidity that is affecting the wiring.
Anyone have any ideas?
Randy
Engine runs great at all speeds.
Ok, easy I thought. I replaced the crankshaft sensor first, becuase it appeared to not work when i manually turned over the enginer while back-probing the sensor. No dice.
I then replaced the camshaft sensor. No dice.
Both sensors are getting the 5V in, so now I am stuck.
Am I looking at an intermittent short possibly? One intersting thing I noticed. In 2 recent trips to Florida, the code would clear after a day or so driving there. Once I returned to Ga, it comes right back. Thought maybe it was due to heat or humidity that is affecting the wiring.
Anyone have any ideas?
Randy
