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P1391 Diagnostic Trouble Code Discussion for August 2011

CKP Or CMP Sensor Signal Intermittent


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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
2001 Chrysler Sebring LXi 2.7L Hesitation, Cuts out, Misfire, MIL Lamp on
P1391: CKP Or CMP Sensor Signal Intermittent. ... returned with codes p1391, p0351, p0353. checked cam and crank signals on lab scope at pcm terminals, signal good and in correct location after comparing to known good waveforms. With KOEO data stream for cam and crank on scanner says 'yes' as soon as engi...
August 15, 2011
2000 Jeep Cherokee Sport 4.0L Cuts out, Misfire VIN: 1J4FF48S9Y
P1391: CKP Or CMP Sensor Signal Intermittent. Hi all. This one has me confused. Vehicle came in with a hard/no start when hot, we also found that the car misses and runs bad when hot. After checking the vehicle out we replaced the coil assy. and the cam synchronizer, but the problem is still there. When c...
August 19, 2011
2001 Chrysler PT Cruiser Limited 2.4L Cuts out VIN: 3C8FY4BB41
P1391: CKP Or CMP Sensor Signal Intermittent. car shuts off in drive only, on acceleration. will crank but not start. loses 8 volt feed to cam and crank sensors. if I cut the feed wire out of the pcm, the voltage is still available. touching the wire on again will get my sensor readings to come back but n...
August 23, 2011
2001 Chrysler Sebring LXi 2.7L Hesitation, Cuts out, Misfire, MIL Lamp on
P1391: CKP Or CMP Sensor Signal Intermittent. ... returned with codes p1391, p0351, p0353. checked cam and crank signals on lab scope at pcm terminals, signal good and in correct location after comparing to known good waveforms. With KOEO data stream for cam and crank on scanner says 'yes' as soon as engi...
August 15, 2011
2000 Jeep Cherokee Sport 4.0L Cuts out, Misfire VIN: 1J4FF48S9Y
P1391: CKP Or CMP Sensor Signal Intermittent. Hi all. This one has me confused. Vehicle came in with a hard/no start when hot, we also found that the car misses and runs bad when hot. After checking the vehicle out we replaced the coil assy. and the cam synchronizer, but the problem is still there. When c...
August 19, 2011
2001 Chrysler PT Cruiser Limited 2.4L Cuts out VIN: 3C8FY4BB41
P1391: CKP Or CMP Sensor Signal Intermittent. car shuts off in drive only, on acceleration. will crank but not start. loses 8 volt feed to cam and crank sensors. if I cut the feed wire out of the pcm, the voltage is still available. touching the wire on again will get my sensor readings to come back but n...
August 23, 2011