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P1309 Diagnostic Trouble Code Discussion for April 2009

Misfire Detection Monitor

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Trouble Ticket Help Requests for DTC P1309
Help Request Posted
1998 Mercury Mountaineer 5.0L Poor Idle Quality, MIL Lamp on VIN: 4M2ZU55PXW
P1309: misfire monitor not set. ... with these set-ups on fords. I have just replaced the camshaft synchronizer assembly due to the internal bushing rubbing and causing a squeeking noise. I replaced it with a reman assembly from napa and have set the #1 cylindar to TDC (I think) and used the...
April 09, 2009