peugeot 306 1.9td

[londondan86]

Mate I don't want to come across as rude but you really need to read what you have been told 4 times. But again, black smoke is unburnt diesel. You probably have a boost leak, check the turbo to intercooler pipes, "d" seal on the manifold first. Also as it has been tuned it may have been done badly hence running too rich.

Have a read through the guides section it will help understand what is going on