Black Smoke...

[dh.dti]

Try checking your turbo boost hoses for splits as when my hose split excessive black smoke was the first symptom I had.

Exactly. Check the boost and intercooler hoses thoroughly for splits or even holes.
Might even find the intercooler hose has blown itself off the throttle body.

Agreed!
The only time my Dti smoked heavily is when the boost pipe had a split.

[Woolly]

Coming back from Carlisle this morning, my Vectra suddenly started chucking out loads of black smoke. Sure enough the pipe between the turbo & intercooler was split. I've done a temporary repair with gaffer tape and shall get a new pipe.

My question is, why should the area of the engine around the split be sooty - it should just be clean air going through that pipe - does it sound like the exhaust gasses are mixing with the inlet air - anyone else had this problem?

[chrisgettings]

Coming back from Carlisle this morning, my Vectra suddenly started chucking out loads of black smoke. Sure enough the pipe between the turbo & intercooler was split. I've done a temporary repair with gaffer tape and shall get a new pipe.

My question is, why should the area of the engine around the split be sooty - it should just be clean air going through that pipe - does it sound like the exhaust gasses are mixing with the inlet air - anyone else had this problem?

there will be oil from the spilt as there is a oil feed into the inlet befor the turbo so all your turbo pipes will be oilly and when split the oil get sprayed out of them