Question about 1998 Ford Mustang

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Misfire when its cold - 1998 Ford Mustang

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Misfire when cold ,is easier to work on ,than one you get
only hot & every 3 weeks for no reason.

Do you have any PO301 thru PO 306 or 8 codes?

Do you have COP Coils or ignition wires?

Check for vacuum leaks,entire vehicle,yes the evap &
exhaust as well.

Are the spark plugs more than 3 years old
Clean MAF Sensor
Back Prob the TPS Sensor

Test-do not throw parts at it

If you can arrange the use of a professional scan tool
go for a test driv ein Mode #06 & look at cylinder misfire
counts

EGR ---issues?

Posted on Dec 01, 2012

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