Could be the coil pack itself
My punto gt started to fire on 3 for a shot time then all 4 now it is only 3 untill over 2k rpm u have changed coil leads plugs done comp test and that's all good cam sensor is good to I'm running out of ideas any one ever have this problem..?
Yeah changed that bud still no diff
Does it always happen after 2k rpm or just now and again
Afm leads phase senser rpm sensor?
AFM by the sounds, give it a clean?
The afm would make it fire on 3..? And yes bud it now always fires on 3 till over 2k
Put new phase on it with my new engine
Was going to suggest AFM myself, but have you fitted a SEB chip? If so was it the correct 1?
No bud it's still STD chip in ecu