I thought i would clean my throttle body as my 2001 225TTQ was approaching 100k. So removed throttle body disconnected plug and cleaned so is shining like new, I pushed the butterfly back with my finger to access every nook & cranny.
I re-connected throttle body hoses etc and when i went to run vag-com to do a throttle body reset the adaptation just shows error ran a check and came up with 3 errors:
17951 - Angle Sensor 1 for Throttle Actuator (G187): Signal too Small
P1543 - 35-00 - -
17580 - Angle Sensor 2 for Throttle Actuator (G188) Signal too Low
P1172 - 35-00 - -
17967 - Throttle Body (J338): Fault in basic settings
P1559 - 35-10 - - - Intermittent
Tried to clear the codes but they came back straight away.
Have i Fubar'd my Throttle? Can't get my TT to start
Haven't had it happen to an Audi, but I've had several vdubs have hard failures of the throttle module when adaptation needed done. Some had prior throttle codes, but some needed adapted after other repairs were done.
NEVER Manually move the throttle plate! The Angle sensors are very precise and delicate. Double check the connection... However, it doesnt look good. They are pretty expensive at the dealer. But look at the bright side of things! Your new one will be even more clean. Good luck and keep us posted.