P1391 loss of camshaft crank
CF Veteran
Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
P1391 can be the loss of either the crankshaft position sensor signal or the camshaft position sensor signal.
If this continues, you are likely to have symptoms (like the engine not starting).
If this continues, you are likely to have symptoms (like the engine not starting).
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