second turbo

[franky]

hey my second turbo doesnt seem to be kicking it and my pressure is only reaching 0.4 instead of 0.8 any idea what i need to check?

[philiwily]

Try looking for a broken one way valve under the UIM

[franky]

thanks i\'ll try do that first is that the silver thing at the back?

[jackaleks]

thanks i\'ll try do that first is that the silver thing at the back?

 
no idea what the silver thing could be, post pics
 
check (and ideally replace) all of your vacuum hoses, for sure one is cracked or split.

[trotter]

thanks i\'ll try do that first is that the silver thing at the back?

the UIM (Upper Inlet Manifold) is indeed the big silver thing at the back. It\'s attached to the throttle body where the intake elbow attaches from the intercooler.

When you\'re removing it make sure you undo all the coolant hoses first (IIRC there\'s too) otherwise you might damage them. Get a copy of the workshop manual - tells you how to do it in there.

HTH

graeme