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P1309 Diagnostic Trouble Code Discussion for February 2009

Misfire Detection Monitor

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Trouble Ticket Help Requests for DTC P1309
Help Request Posted
1999 Ford Ranger XL 3.0L Misfire, MIL Lamp on VIN: 1FTYR14V6X
P1309: misfire montior fault. ... almost as if a cyl. was down. It has a new cmp sensor and #1 o2 sensor. But after every test drive it throws a po135 and p1309. All tedst performed checked out good. I was seeing if anyone else has seen this problem before! All inications point to the pcm,...
February 10, 2009