I have further news on this topic!
the fuse F20 was not ok... replaced and the error is gone!
Tried the car for a few KM and the same problem happened again... now I am sure something it is something electrical.
Tomorrow I will check and keep you guys posted.
Maybe this issue already happened to someone with gen3 TFSI in my case Audi S1
I have errors P2088, P2090 and P0445 but nothing different with my car... no noise, no power loss!!
When I erase them after I start the engine again I have same error :S
Any help is...
do you have the parts already fitted into your car?
I received today the TTE470 I will be testing in my car after this thursday dyno with my orignal turbo with hybrid solution from CR Turbos in Portugal.
If everything goes well I will then fit the TTE470 and do another run in some...