Ive had this problem happen twice now and its confused me,
It seems to happen when i have left the car for a while ( a couple of days) and then drive it steady once the car has wamed up and i go to stretch its legs a little i only get around 11psi of boost , I know this is what the waste gate is set to.
The first time i thought maybe the N75 had come unpluged or loose so i turnedthe car off and had a poke around, When i fired it up to head home everything was fine. full boost again!
I had a spare N75 valve at home so i tried that and things seemed ok... untill this morning, Same thing, Only 11psi until i tuned engine off and on, Then everything is fine
Has anybody any ideas?
I dont want to just chase the problem around the engine bay buying expensive sensors and valve if i dont even know where it is