P1391 - Intermittent Loss of CMP or CKP
The sensors are good suspects, but for intermittent loss of signal, a wiring problem is more likely. The way I would approach this is to connect the Chrysler DRB3 scanner and watch which signal switches from "present" to "no" when the running problem occurs. Once you know which sensor signal is missing, check its signal wire and connector terminals.
Tuesday, October 13th, 2015 AT 8:24 PM