Hi again. I had an old passat yesterday with a code for basic settings not done on throttle body possably the same code. after cleaning, it re set but the basic setting fault code cleared first, before i did the basic setting. it will not run the reset if there are any fault codes.
Is the ecu dry. have you tried disconnecting it. are you sure the tool you are using is good at vag
if the wirings good and the throttle body is new
id be borrowing an ecu i think.
all car electronics may have a free running one to try.