P1391 Diagnostic Trouble Code Discussion for June 2015
CKP Or CMP Sensor Signal Intermittent
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| Help Request | Posted | |
| 1999 Jeep Cherokee Sport 4.0L Poor Idle Quality, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1J4FF68S0X P1391: CKP Or CMP Sensor Signal Intermittent. Approximately, one month ago, I did a complete cylinder head job on this vehicle including all related repairs listed in history. I had the customer come back after two weeks to re-flush the cooling system due to the excessive rust in the system causing previo... |
June 17, 2015 | |
| 1999 Jeep Cherokee Sport 4.0L Poor Idle Quality, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1J4FF68S0X P1391: CKP Or CMP Sensor Signal Intermittent. Approximately, one month ago, I did a complete cylinder head job on this vehicle including all related repairs listed in history. I had the customer come back after two weeks to re-flush the cooling system due to the excessive rust in the system causing previo... |
June 20, 2015 |
