Misfiring at certain RPM

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03-12-2004, 02:04 AM

Milky

4th Gear Member

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Join Date: Dec 2003

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Posts: 1,194

Misfiring at certain RPM

I found out that the rpm problem Im having is actually just misfiring. If I floor it in any gear, at about 3900 rpm horrible misfiring occurs. If I do NOT floor it and the throttle is not wide open, I can go above the 3900 rpm with no problem. Sounds like a computer problem to me but I don't really know... Do any of you?

03-12-2004, 06:55 AM

e40water

2nd Gear Member

Join Date: Mar 2004

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Posts: 461

RE: Misfiring at certain RPM

I am thinking you need to do a few trouble shooting tasks, first I would look at youre plug wires cap rotor, distribor, then fuel pressures filtres, Most cases a plug is no good, Or youre fuel pump is weak on PSI