so ya i just tested my driftmotion IC lines from turbo to intake and held nearly 30psi without leaking. when i drive though i get boost spike up to 17psi and then slowly creeps down to 15psi (my target boost) and sometimes down to 12psi. my question is where else could i be loosing pressure, do some of the intake manifold vacuum lines let out pressure when boosting like the vsv or bvsv or isc, well isc is plugged already, anyway im running a stand alone with a MAP sensor so anything pre turbo does not matter. also i have a manual boost controller so its not a solenoid problem. as usual any help is greatly appreciated.
