R33 miss firing problem
Hello guys
My r33gtst has been running rough the last week or so
Have a adaptronic ecu,1400cc xspurt injectors/custom rail aeroflow,walbro 460,turbosmart fuel pressure regulator and all e85 lines
The problem im having is it just misses makes a similar sound from exhaust toof toof toof missing and when cold is all over the place
Once warmed up it starts to clear up abit better And smoothen out more when driving it
I have just also noticed when im in first gear clutch in and rev it say to 1500rpm it sounds realy rough but when i engage the clutch to say stress point hold it there it all smoothens out perfect until clutch in again and runs rough misses all through from 800rpm - 4000rpm idle
I have changed plugs,checked all coil packs,all injectors ,changed all fuel hoses (e85)
Checked replaced all vacuum hoses and checked all cooler pipe hoses
Im leaning towards ecu,maybe blocked injector or vct
Any ideas