ok.. there are three ports on the throttle body. two on top. one below

cap the one under the throttle body

the two on the top:

the big one -> use this for your BOV and wastegate actuator

the little one -> use this for your fuel pressure regulator and boost gauge.


now if youre not getting any boost, it usually isnt a vacuum line problem. perhaps the turbo isnt spooling? i would take off the rubber intake tube and then remove the aluminum turbo inlet pipe (two 12mm nuts) and start the car with the MAFS unplugged. watcht the turbo. if it isnt spinning, thats a bad sign. rev it up.. if it still doesnt spin, then its froze up. usually froze up turbos will kick back in once hot oil is run through thewm for a while. try letting it idle a bit and rev it up every so often, checking to see if its spinning yet. once it is, reinstall everything, drive, enjoy. serves 2