I have a 2002 Audi TT Quattro with quite a few mods, as you can see in my garage. I have a GT3076R turbo on it. It has been working fine. I drove it home Friday morning from work and everything was still fine. I went to drive it to the store earlier today and figured out that my turbo wasn't spooling or whistling. My boost gauge is still reading right and everything though. I really don't know what else to do. Hoping that it isn't frozen. Any ideas or suggestions? Thanks.