Hi guys im driving stock 4g93t with vr4 i/c, evo fuel pump and blitz dsbc.
2 days ago the car felt heavy and not willing to boost up like before. No matter which boost setting i adjust the dsbc the boost reading will...
What's the stock fuel pressure reading? I'm afraid I'm getting low fuel pressure....
If so, is it better to get a new fuel pump or a fuel pressure regulator?