Missfiring

[zachdeagle16]

Every time i get on it realy hard my car starts to buck and missfire it ussaly happens at higher rpms and it doesent always do it. My timing is good and i have plenty of fuel. Does anybody know what this could be?

 

[BlackbirdOfPrey]

Bad ignition coil, bad plugs, bad wires, bad ignition transistors. I have the same problem, but its too cold outside to do a lengthy investigation. Those 4 are where I'd start looking.

 

[zachdeagle16]

Ive got an extra coilpack, power transistor, and plugwires so ill swap them out tomarow and let you know what happens. Oh yeah does your car missfire at idle?

 

[oldman]

Boost leak test.

 

[zachdeagle16]

Ive boost leak tested lots of times and came up with nothing.

 

[BlackbirdOfPrey]

Ive got an extra coilpack, power transistor, and plugwires so ill swap them out tomarow and let you know what happens. Oh yeah does your car missfire at idle?

If it does, its after I've been at high rev and let it drop down to idle, then it starts misfiring. Other than that it has happened when I've been at WOT and man does it suck....

 

[PaleDSM]

90% of the time that someone goes online complaining about the car misfiring it is because of bad or improperly gapped plugs or bad wires.

Start with the simple things first peeps.