2002 Ford Focus P0304 #4 Cylinder Misfire

2002 FORD FOCUS
88,000 MILES • 4 CYL • FWD • AUTOMATIC
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PATS2002FOCUS
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2002 focus dohc z-tec engine.

Hesitation during accelration.

new plugs,plug wires, fuel filter last 6 months.
Cleaned throttle body(not that dirty).
Cleaned MAF sensor.
running fuel injector cleaner(no noticable impact)

I was hoping based upon your experience, the most likely casue for this make and model or perhaps a list of other potential casuses so i can narrow down the problem.
Jun 21, 2010 at 5:09 PM
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RASMATAZ
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Misfire at cylinder no.4-Check the sparkplug, compression and injector for this cylinder
Jun 21, 2010 at 5:13 PM