I recently had my K03s rebuilt and just finished reinstalling it over the weekend, but when I start the car, my intercooler to throttle body hose is collapsing under vacuum.. it would seem that the turbo isn't spinning, or air isn't moving through the compressor fast enough? WTF? The turbo shaft spins by hand.

I posted this on the audi & VW forums and haven't heard anything yet.

Thanks