Its been running ok but then he put an adjustable fuel pressure reg on, he set it for 3.5 bar and then the car started to mis-fire at 3k rpm.
He then took it off and it still misfired, so he got a new standard fuel pres reg,spark plugs new coils new injectors and its still doing it.
He has also checked icv and was told that it wont be the crank sensor or lamba.
Any one have any idea what else it might be.
Thanks
Ollie