My 2001 Audi TT has been spuddering at high rpm. It runs fine when you slowly accelerate, but when you lay into it, it starts spuddering. I got tha codes read, and it says its misfiring. I put a new fuel filter, new plugs, and both O2 sensors on trying to fix the problem. I am stuck, possible the coils? Pleeaaaaaase Help!!!

 

Check for any hoses leaking connected to the intake and turbo components