hi there can anyone help when i drive car hard turbo cuts, but when started again it`s fine been put on ross-tech it comes up with 17965 (Charge Pressure Control: Positive Deviation), I have tried cleaning with Innotech But no difference so far, So Can anyone else help with this Problem?

If it is the turbo then the vanes may be rusty hence why the innotech didn't work, or it is really gunged up.

Alternatively it could be something on the boost control system, such as the N75, or a vacuum leak.

This link might be of help:

http://wiki.ross-tech.com/wiki/index.php/17965/P1557/005463

I have just cleared my limp mode using this, hope it of help to someone.

My link

Only thing is you dont feel the boost in power they say, but it does run better and rev smoother

FYI my TDI has done 130,000 miles and was well worth the money.