hi all, I am having a problem with my series 1 R33 GTST. When I drive the car and rev the car slowly it wont missfire but when I put the foot down it will misfire at 4000 rpm.
So far I have changed the Spark plugs and I got my hand on a working set of coil packs so I swapped them, and now it is still doing the same thing. What I am asking is have people had a similar problem and what did they do to fix it? Could the ignitor couse this problem, could it be fuel pump considering that the continues along after the 4000 rpm mark?
I would normally take it to my Mechanic but I have a track day on Thursday and I cant fit it in by then, so any advice would be appreciated.
Cheers
Chris