hi all ,my sister bought a mfi rs turbo cabriolet that is a non runner, just recently managed to get it running it had a breather pipe missing that goes from rocker cover to fuel metering unit.

the car runs very sweet but the turbo dosent seem to be doing anything, it has a boost gauge and when you drive the car it only goes to "0". and carnt ever seem to hear the turbo,

All the boost hoses are mint and on tight, it hasnt got a dump valve fitted. however it has been fitted with adjustable boost valve, tried turning this in and out and makes no difference, took the hose of the turbo and checked that the compressor wheel is free to rotate and dosent have any free play.

i dont know where to from there so any pionters would be mint. thanks