ive got a cavvy turbo, the engine has hybrid turbo, different actuator, fuel pressure regulator and is supposed to be running 260 according to last owner. heres the problem>>>>
when you accelerate with foot flat down, the turbo spins up fine get to 4000rpm and it sorta goes onto 3 cylinders with lots of popping out the exhaust. back off and its fine.
it drives a1 if you dont put your foot flat down, say you have half throttle, it hits boost and revs right up no bother, slight hesitations but nothing major, foot flat down and it kinda miss fires again.
it isnt the leads/plugs/dizzy etc and the engine ie mechanically inside is 100% spot on. it was fully rebuilt 14,000 miles ago by regal with recipts, new turbo etc etc.