Join Now
International Automotive Technicians Network

P1391 Diagnostic Trouble Code Discussion for February 2007

CKP Or CMP Sensor Signal Intermittent


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1391
Help Request Posted
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 03, 2007
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 03, 2007
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 06, 2007
1995 Dodge Neon 2.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1J12345K78
P1391: Cam/Crank sync. Hi Gang, I'll be looking at this over the weekend and wanted to get a heads up. Sorry about the bogus vin. A fellow tech is working on this sled and says its pretty strange. After the engine gets hot, and only after driving it a mile or so, it will buck, miss ...
February 16, 2007
1996 Chrysler Town & Country (Van) LXi 3.8L No Start VIN: 1C4GP64L2T
P1391: cam or crank signal intermitent. ... with.it happens to be a 96 t&c that came to me with a complaint of shutting down after it ran about 25-35 miles.check engine lt was on,got codes p0340 cam sensor and p1391 cam or crank intermitent.checked cam sensor with vantage and found signal glitch...
February 22, 2007
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 03, 2007
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 03, 2007
2002 Dodge Ram 1500 Truck 4.7L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1D7HA18N12
P1391: CKP Or CMP Sensor Signal Intermittent. ... that on cold starts in the morning will set code p1391 surge and cut out.Runs good warm other then will after a while, coat spark plugs with soot from running rich as acts up .have hooked up a scope to check both ckp&cmp sensors while problem is there....
February 06, 2007
1995 Dodge Neon 2.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1J12345K78
P1391: Cam/Crank sync. Hi Gang, I'll be looking at this over the weekend and wanted to get a heads up. Sorry about the bogus vin. A fellow tech is working on this sled and says its pretty strange. After the engine gets hot, and only after driving it a mile or so, it will buck, miss ...
February 16, 2007
1996 Chrysler Town & Country (Van) LXi 3.8L No Start VIN: 1C4GP64L2T
P1391: cam or crank signal intermitent. ... with.it happens to be a 96 t&c that came to me with a complaint of shutting down after it ran about 25-35 miles.check engine lt was on,got codes p0340 cam sensor and p1391 cam or crank intermitent.checked cam sensor with vantage and found signal glitch...
February 22, 2007