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P0315 Diagnostic Trouble Code Discussion for November 2012

Crankshaft Position Sensor Variation Not Learned

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Trouble Ticket Help Requests for DTC P0315
Help Request Posted
2009 Jeep Patriot Sport 2.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4FF28B69
P0315: crank position variation not learned. we have a good one on our hands. the vehicle came in as a no start. it had three codes in it with the 300,315, and 335. we put a crank sensor in it and it started. it ran very well for a few minutes and then all of the sudden it started to misfire. so we turne...
November 08, 2012