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P0316 Diagnostic Trouble Code Discussion for January 2007

Misfire Detected On Startup (Within the 1st 1000 Revolutions)

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Trouble Ticket Help Requests for DTC P0316
Help Request Posted
2003 Ford Focus ZTS 2.0L Poor Idle Quality, Misfire VIN: 1FAFP38323
P0316: misfire during the first 1000 engine revolutions. What I have is an engine with low vaccum and it varies like a valve is bad. My running compression is 120-150lbs. I've never experienced it that high before. This engine doesn't have VVT or variable induction. I've had a spark checker in and it easily fires 25...
January 08, 2007