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colleen

colleen 3/22/2011

1996 Pontiac Grand Am SE 4 Cyl 2.4L

Engine

when tested on code reader says random misfire when driving down road will misfire

we have changed spark plugs boots ignition module one fuel injector. i have also run fuel injector cleaner throught the gas

2 Answers


Ray

Ray 3/22/2011

It could be a vacuum leak, stuck EGR, low fuel pressure. Were there any other codes besides the p0300?

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Mayor

Mayor 4/28/2011

You said you changed the spark plug boots but how about the plugs? I had this code on my Grand Prix and new plugs fixed it.

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