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P1391 Diagnostic Trouble Code Discussion for June 2011

CKP Or CMP Sensor Signal Intermittent


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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
2004 Jeep Grand Cherokee Special Edition 4.7L MIL Lamp on VIN: 1J4GW48N64
P1391: CKP Or CMP Sensor Signal Intermittent. Hello everyone out there.this jeep came into the shop as a trade in.the lady that traded in has no history on the vehicle since she got the vehicle from a relative who did not make payments on it.the trouble code that always comes up is p0340.this trouble code...
June 13, 2011
2004 Jeep Grand Cherokee Special Edition 4.7L MIL Lamp on VIN: 1J4GW48N64
P1391: CKP Or CMP Sensor Signal Intermittent. Hello everyone out there.this jeep came into the shop as a trade in.the lady that traded in has no history on the vehicle since she got the vehicle from a relative who did not make payments on it.the trouble code that always comes up is p0340.this trouble code...
June 14, 2011
2002 Jeep Liberty Sport 3.7L No Start, Poor Idle Quality, Stall, Misfire VIN: K22W124395
P1391: CKP Or CMP Sensor Signal Intermittent. Vehicle will not start, if you can get the vehicle to start the vehicle will only run on cylinders 4,3,2. Cylinders 1,6,5 misfire. Firing order is 1,6,5,4,3,2. Tested ASD feeds to coils and all ck good. Lab scopped CMP and CKP sensor and got good square waves....
June 18, 2011
2002 Jeep Liberty Sport 3.7L No Start, Poor Idle Quality, Stall, Misfire VIN: K22W124395
P1391: CKP Or CMP Sensor Signal Intermittent. Vehicle will not start, if you can get the vehicle to start the vehicle will only run on cylinders 4,3,2. Cylinders 1,6,5 misfire. Firing order is 1,6,5,4,3,2. Tested ASD feeds to coils and all ck good. Lab scopped CMP and CKP sensor and got good square waves....
June 19, 2011
1998 Jeep Cherokee Classic 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1J4FT28S7W
P1391: CKP Or CMP Sensor Signal Intermittent. ... a complaint of running poorly on acceleration. scanned and found p1391. customer replaced crank sensor and distributor. i was looking on my scan tool for cam/crank sync status and couldnt find it, instead i found reset cam sync. i performed cam sync and en...
June 24, 2011
1998 Jeep Cherokee Classic 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1J4FT28S7W
P1391: CKP Or CMP Sensor Signal Intermittent. ... a complaint of running poorly on acceleration. scanned and found p1391. customer replaced crank sensor and distributor. i was looking on my scan tool for cam/crank sync status and couldnt find it, instead i found reset cam sync. i performed cam sync and en...
June 27, 2011
2004 Jeep Grand Cherokee Special Edition 4.7L MIL Lamp on VIN: 1J4GW48N64
P1391: CKP Or CMP Sensor Signal Intermittent. Hello everyone out there.this jeep came into the shop as a trade in.the lady that traded in has no history on the vehicle since she got the vehicle from a relative who did not make payments on it.the trouble code that always comes up is p0340.this trouble code...
June 13, 2011
2004 Jeep Grand Cherokee Special Edition 4.7L MIL Lamp on VIN: 1J4GW48N64
P1391: CKP Or CMP Sensor Signal Intermittent. Hello everyone out there.this jeep came into the shop as a trade in.the lady that traded in has no history on the vehicle since she got the vehicle from a relative who did not make payments on it.the trouble code that always comes up is p0340.this trouble code...
June 14, 2011
2002 Jeep Liberty Sport 3.7L No Start, Poor Idle Quality, Stall, Misfire VIN: K22W124395
P1391: CKP Or CMP Sensor Signal Intermittent. Vehicle will not start, if you can get the vehicle to start the vehicle will only run on cylinders 4,3,2. Cylinders 1,6,5 misfire. Firing order is 1,6,5,4,3,2. Tested ASD feeds to coils and all ck good. Lab scopped CMP and CKP sensor and got good square waves....
June 18, 2011
2002 Jeep Liberty Sport 3.7L No Start, Poor Idle Quality, Stall, Misfire VIN: K22W124395
P1391: CKP Or CMP Sensor Signal Intermittent. Vehicle will not start, if you can get the vehicle to start the vehicle will only run on cylinders 4,3,2. Cylinders 1,6,5 misfire. Firing order is 1,6,5,4,3,2. Tested ASD feeds to coils and all ck good. Lab scopped CMP and CKP sensor and got good square waves....
June 19, 2011
1998 Jeep Cherokee Classic 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1J4FT28S7W
P1391: CKP Or CMP Sensor Signal Intermittent. ... a complaint of running poorly on acceleration. scanned and found p1391. customer replaced crank sensor and distributor. i was looking on my scan tool for cam/crank sync status and couldnt find it, instead i found reset cam sync. i performed cam sync and en...
June 24, 2011
1998 Jeep Cherokee Classic 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1J4FT28S7W
P1391: CKP Or CMP Sensor Signal Intermittent. ... a complaint of running poorly on acceleration. scanned and found p1391. customer replaced crank sensor and distributor. i was looking on my scan tool for cam/crank sync status and couldnt find it, instead i found reset cam sync. i performed cam sync and en...
June 27, 2011