My 330L is bringing out black smoke if is working, I have changed the Nozzle. But is still bring out the black smoke and compressing the tubor hose. Recently i discover that the tubor is transfering oil in the inlet. I changed the tubor,but the engine is still bring out black smoke and the tubor hose is still compressing. What should i do next.?
Check for blockage from air intake to filters and turbo intake.
Plugged air cleaner will suck the hose shut. And make one smoke black