hrmm.. maybe im misreading.. but r u sure its misfire and not blow-out(just wondering because i get blow-out sometimes when i let off the gas and get back on it jsut because of where im at in the rpms and crossover, but under normal throttle or full trottle i dont get it at all).... why do you have a 5th injector setup on an 02(thought only ralliarts used that)?

 

mabye you misread or i mistyped jonas but yea mine is pretty much only at wot sometimes not but more at wot,like on the freeway last night at wot in 5th gear it would misfire every couple sec like it was hitting revlimiter then i would let off and get back on it and it would be ok for a split sec and then misfie again??

 

yes that is exactly whats happening... so do you guys know the fix? will a good tune fix it?

 

these are the spark plugs i use:
http://stores.speedcorps.com/-strse-...ugs/Detail.bok

they're already gapped to spec.

 

k.. hate to say it.. but its the plugs(or might be, mine didnt work and i had those to). try your stock plugs and gap them to .030

see if that fixxes the problem.

 

so based on these facts, its 99% the plugs? fyi im throwing the same code and experiecing the same things

 

bump!!

pullin the p0300 code, runnin custom 16g turbo @ 7 psi, 8.8:1 wiseco pistons

need help plz!