What does intermittent loss of cmp or ckp mean?
It means that intermittently you are losing the signal from your camshaft position sensor (CMP) And you are also losing the the crankshaft position signal sensor (CKP). these are magnetic or hall effect sensors that go out sometimes and are necessary or you could have a poorly running vehicle or it may not run at all.
How to fix p1391 code on Jeep Wrangler?
Fix & Repair a P1391 Code on a Jeep Wrangler, Cherokee or Similar – YouTube P1391 CHRYSLER – Intermittent Loss of CMP or CKP Usually paired with a check engine light on. Crank Position Sensor or Cam Position Sensor intermittent failu… P1391 CHRYSLER – Intermittent Loss of CMP or CKP Usually paired with a check engine light on.
What causes a bad CKP signal on a p1391 Jeep?
P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) harness is open or shorted Crankshaft Position Sensor (CKP) circuit poor electrical connection Timing belt or chain stretched or jumped Faulty Camshaft Position (CMP) Sensor
What is the meaning of the error code p1391?
Definition. Error Code P1391 happens when the PCM (powertrain control module, also known as ECM or engine control module in other vehicle makes) has detected that the actual position of the CMP disagrees with its expected level as set by the manufacturer.
What causes an OBDII code on a jeep?
P1391 JEEP Possible Causes Faulty Crankshaft Position Sensor (CKP) Crankshaft Position Sensor (CKP) harness is open or shorted Crankshaft Position Sensor (CKP) circuit poor electrical connection Timing belt or chain stretched or jumped
What does diagnostic trouble code p1391 Jeep mean?
P1391 JEEP Meaning The Powertrain Control Module (PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor (CKP) Signal. The Diagnostic Trouble Code (DTC) will set when the PCM detects the actual Camshaft Position Sensor position disagreed with the expected Camshaft Position Sensor level.
How much does it cost to repair a p1391 Chrysler?
The cost to diagnose the P1391 CHRYSLER code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
When does the diagnostic trouble code set on a Chrysler?
The Diagnostic Trouble Code (DTC) will set when the PCM detects the actual Camshaft Position Sensor position disagreed with the expected Camshaft Position Sensor level. Need more information on how to fix the P1391 CHRYSLER code?