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P1309 Diagnostic Trouble Code Discussion for November 2007

Misfire Detection Monitor

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Trouble Ticket Help Requests for DTC P1309
Help Request Posted
1999 Ford Explorer XL 4.0L Misfire, MIL Lamp on VIN: 1FMZU34X1X
P1309: misfire. ... last week (code po171& 174) and it was the intake gaskets. This 4.0 explorer threw a p0455 large evap leak and a p1309 general misfire code. I am leaning toward the intake gasket set again but wanted to run it by a cou...
November 05, 2007