I am still having some misfires of some kind (dont know how bad it is,but it is there) at 3900-4000 r/min and upwards when revving engine without boost, either parked or driving at revving it. If I rev it up to 37-3800 r/min in third as an example, and floor it so the boost is there promtly there is nothing that I can feel!?!?!?
This problem have been away about a month ago for some time.. now it is back.

Could this be the fuelpressure playing with my when there is no boost??

I will soon cause I have checked everything, and changed everything, and some parts more than once. Every wire has been checked, every sensor gives the correct signal all the way from cold to hot. Multiplugs was recently soldered. I also know this fault is there with 2 different chips/injectors.

Anyone??