Black smoke and low power?

sounds like something on air intake is it clear,have you checked air filter also make sure turbo hoses are not collapsing under load if intercooler fitted- is it clear,is turbo ok,also check exhaust silencer/pipe work to make sure there are no blockages.

k
October 2009

have you checked your cylinder compression? could be faulty piston rings

dave crawf
October 2009