P1391 Diagnostic Trouble Code Discussion for October 2022
CKP Or CMP Sensor Signal Intermittent
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| Help Request | Posted | |
| 2002 Jeep Liberty Limited 3.7L No Start VIN: 1J8GL58K52 P1391: CKP Or CMP Sensor Signal Intermittent. Ok so I checked cam and crank sensors waveforms from back probing ecm and I have a beautiful signal from both sensors so I checked the waveform library and found a good waveform pattern cam and crank and it looks good timing right on the money even pulled ... |
October 30, 2022 |
