Originally Posted by
martysmartie
Black smoke as said is fuel but may be your turbo as you say it sounds noisy, so not making the boost, so you are having a richer mixture with the result being black smoke chucked out the back.
Martin
its deff got a strange noise from turbo , and only seems to be bad when on boost,like when on kick down to go up hill, its almost like a fan belt screatch, people i have spoke to about it ask if its loosing power but its hard to tell as there slow as shit anyway !