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P1391 Diagnostic Trouble Code Discussion for August 2009

CKP Or CMP Sensor Signal Intermittent

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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
1998 Jeep Wrangler SE 2.5L MIL Lamp on VIN: 1J4FY29P8W
P1391: CKP Or CMP Sensor Signal Intermittent. ... code p1391 thought it was just fluke cleared and reset all adaptives. code returned on test drive. check codes found the cam crank sync is stateing lost. check all connections and grounds all are clean and good. i'm not a jeep person so any help here would...
August 24, 2009
1996 Chrysler Sebring JX 2.4L Surge, Cuts out, MIL Lamp on VIN: 3C3EL45X8T
P1391: Intermittant Loss of Cam or Crank Signal. ... ongoing problem. When engine is cold or hot it will start and idle fine. On a cold start you can only throttle it to 1700 to 2000 rpm, and it begins to stumble and cut out almost but not quite like hitting a rev limiter. After it begins to warm up you can ...
August 31, 2009