Good day to all. I have a E46 320d FL that's giving a lot of power problems. About 4 months ago I had a runaway diesel engine(cause still unknown), the car sounded terrible with uneven idling and I started stripping to see what damages there was(Turbo). Whilst busy the following where done too,-Turbo checked(actuator, fins, shaft, oil seals, vanes etc) all OK.
-All vacuum lines replaced with high pressure silicone lines
-vacuum canister checked
-Micro filters cleaned on vacuum regulators
-EGR cleaned
-Checked for leaks on intercooler and boost pipe
-boost pressure sensor cleaned
-and basic service (oil and all filters)
-diagnostics with INPA and DIS
The car ran perfect after all this until 3 weeks ago. I re-checked everything again and ran diagnostics and all seems to be OK.
The problem now is the car has no more explosive, neck breaking boost. Under normal driving load everything feels fine until you put you foot down. No responsive acceleration, the boost is very very flat until 3000 rpms where you can feel the boost kicking in( still not 100%).
Any help would be appreciated.
Thanks