Yep currently having the same problem, though at first it would make some boost, slowly up to 6psi at max rpm. Car is tuned to 12psi with standard actuator. I checked manifold bolts, all hoses and clamps and even replaced the wastegate control solenoid. Then by coincidence the dump pipe to turbo bolts came loose so tightened them. Now no boost at all. I had my local Ford service take a look because I spotted a turbo housing bolt loose on the exhaust side, which I couldn't get to. They tightend that and also found a turbo mounting bolt missing. But still no boost, so they took the dump pipe off and found the wastegate stuck open. Will be taking somewhere else to fix that as all they could offer is send the turbo away for a rebuild. So a few issues all at once, but main one is the wastegate stuck open for me. Cheers. Ben