2002 Chrysler Voyager 3.3L with engine code P1391

Question

I have code P1391 .I replaced .cam pos sensor,crank pos sensor ,throttle pos sensor , intake manifold pressure sensor . engine cuts of on acceleration . engine does not start or run when when cam pos sensor gap is adjusted to the original 0.03 it starts only when the gap between cam sproked and sensor is around 0.075

Answer 1

P1391 Intermittent loss of CMP or CKP

The CMP has a papaer  spacer that is set at a set distance, just by setting a gap by moving it you could be setting a P1391 which could be the reason for P1391 code to set. Set the cam position sensor with another paper gasket clear the code. listen to the engine at cranking at see if you notice any noise at the flywheel area.

 P1391 could also be set if the flywheel breaks , the CKP (crankposition sensor) uses a toner at the flywheel (flexplate)

Answer 2

P1391 CHRYSLER - CMP Or CKP Signal Intermittent Condition

Read more: https://www.autocodes.com/p1391_chrysler.html