hi guys....
not sure if i am right here but here goes..... a common fault on the tfsi along with the dv is the pcv?? if this is faulty does it somewhere along the line clogg up or leave unwanted substance on the valve causing possible boost leaks?
if so once the pcv is replaced can you then flush the engine to clean the valve/s?? my knowledge is limited i may be completely wrong and may have got the wrong end of the stick of a conversation....
