turbo not working help please

[deano1]

hi my turbo isnt working on my 2.0 dti it was code read and came up boost pressure valve which i swapped with my mates and still the same mine works ok on his engine aswell any ideas as i am stumped.

thxs dean

[VauxVeteran]

Try the airflow meter mate, when these fail, and they do on DTi's the car goes totally gutless.

[VauxVeteran]

And the hose to the turbo as well, either off or split causes a load of hassle.

[deano1]

tried both off my mates car still the same thxs anyway vv
any oneelse

[markd3925]

split vac hose somewhere check all rubbers

[Danwells72]

Usually it will be the boost hose before the intercooler. they always split and are crap. sometimes you may split the boost hose after the intercooler. other than that try cleaning the maf as it may have too much oil or dirt on it

EDIT: Clean the boost sensor as well