Check the wire for any breaks or damage.
This is likely the cause for the rough running as it causes misfires.
P1391 - JEEP - CMP or CKP Signal Intermittent Condition - Check the wires and if you have a different cam sensor keep it in the box. Normally this is a wiring issue, not the sensor.
https://www.youtube.com/watch?v=qpL_0-8DrhE
gives you some tests.
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Monday, March 6th, 2017 AT 10:33 AM