It's been a while chaps
Okies just started to notice an issue at the top of the rev range when the cars boosting fully, the car seems to get to a certain point then starts juddering, the power drops off and a quite loud tssss.
So far i have disconnected the MAF, that didnt do anything, checked the top hoses, going to change the N75 tomorrow to see if that does owt, N249 is already bypassed..... already have uprated DV....plugs are only 6 months old.....and i see have the Lamba fault coming up every now and again (still not got around to resolving that)
ideas? i'm hoping it isnt a manifold leak or something worse