P1391 CHRYSLER
CMP or CKP Signal Intermittent Condition
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible causes
- Timing belt or chain stretched or jumped
- Faulty Camshaft Position (CMP) Sensor
- Camshaft Position (CMP) Sensor harness is open or shorted
- Camshaft Position (CMP) Sensor circuit poor electrical connection.
Description
The Engine Control Module (ECM) detected the actual Camshaft Position Sensor (CMP) position
disagreed with the expected CMP level.
|