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P1391 Diagnostic Trouble Code Discussion for April 2014

CKP Or CMP Sensor Signal Intermittent


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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
2001 Dodge Stratus SE 2.4L Cuts out, Misfire, MIL Lamp on VIN: 1B3EJ46X11
P1391: CKP Or CMP Sensor Signal Intermittent. This car has a P1391 code with an engine that runs rough like it has a misfire and the SES light is on. Someone else has replaced the coil, plugs, wires, cam and crank sensors and they did not fix the problem. I reset the cmp cpk sync with my scan tool but th...
April 09, 2014
1999 Jeep Wrangler Sahara 4.0L Cuts out VIN: 1J4FY49S7X
P1391: CKP Or CMP Sensor Signal Intermittent. ... "99 Wrangler Sahara 4.0 standard transmission. Bucks hard on a hard acceleration. If you ease into the gas, smooth as silk. Keeps setting a P1391. I scoped the cam/crank signal with my pico. Cam/crank signal is in sync but crank signal is definitely dr...
April 15, 2014
1998 Dodge Caravan 3.0L Cuts out, Misfire, MIL Lamp on VIN: 2B4FP2539W
P1391: CKP Or CMP Sensor Signal Intermittent. ... poorly when Hot, on an intermittent basis. I found the connector at the distributor to not have the wires locking properly (backing-out). Replaced connector, cleared codes and it ran great for a couple of days until it got hot and set the code P1391. Perfo...
April 17, 2014
1999 Jeep Cherokee Sport 4.0L No Start, Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1J4FF67S0X
P1391: CKP Or CMP Sensor Signal Intermittent. ... reman computer put in it from dealer and programmed, drove it for about 800 miles with no problem then it started back firing and seemed to have a bad misfire and died, would not restart, we got it started and at times it runs great, other times it does no...
April 29, 2014
2001 Dodge Stratus SE 2.4L Cuts out, Misfire, MIL Lamp on VIN: 1B3EJ46X11
P1391: CKP Or CMP Sensor Signal Intermittent. This car has a P1391 code with an engine that runs rough like it has a misfire and the SES light is on. Someone else has replaced the coil, plugs, wires, cam and crank sensors and they did not fix the problem. I reset the cmp cpk sync with my scan tool but th...
April 30, 2014