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P1336 Diagnostic Trouble Code Discussion for October 2005

CKP Sensor System Variation Not Learned

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Trouble Ticket Help Requests for DTC P1336
Help Request Posted
1998 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality VIN: 2GCEK19R5W
P1336: CKP Sensor System Variation Not Learned. Vehicle from another shop, engine has high idle(2000rpm) most of the time, key cycle or cold sit may idle ok for 5min after driving sticks in high again. Iac was aftermarket we replaced unit with a delco same problem. votage test to and from pcm appear to be o...
October 20, 2005