My boost wouldn't go pass 4 psi either. How do I inspect for boost leak? Do I just look at the pipes by eyes? And what should I told the dealer to fix it?
Sorry for many noobs questions.
I tried a short run this morning where the air is relatively cool (around 20C), but still couldn't get pass 5 psi. (scratch)
Oh yeah, I cleaned my air filter just last night and it doesn't help either.