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P1391 Diagnostic Trouble Code Discussion for December 2005

CKP Or CMP Sensor Signal Intermittent


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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
2000 Jeep Grand Cherokee Laredo 4.0L No Start, MIL Lamp on VIN: 1J4GW48S4Y
P1391: CKP Or CMP Sensor Signal Intermittent. ... came into our shop & the customer complaint was no tach or speedo plus a check engine light. We started our diagnostics & pulled a code P0340 CMP Sensor Circuit. After starting the vehicle twice during diagnostics it would no longer start. Called t...
December 08, 2005
2000 Jeep Grand Cherokee Laredo 4.0L No Start, MIL Lamp on VIN: 1J4GW48S4Y
P1391: CKP Or CMP Sensor Signal Intermittent. ... came into our shop & the customer complaint was no tach or speedo plus a check engine light. We started our diagnostics & pulled a code P0340 CMP Sensor Circuit. After starting the vehicle twice during diagnostics it would no longer start. Called t...
December 08, 2005