12 plate Audi A3

It came into us for a service 6 months ago  with the mil light on  Snapon scanner inconclusive so a clear code and run and rescan PO 12100 the Autel and Foxwell   are far superior for diagnosis and service resets on most car's this code is for throttle position sensor A I'm NOT convinced it's an electrical fault . I think it's a sticking throttle body flap  gunked up .  so  I'm gonna remove it tmoz and clean it and try to save it !!!  anyone had this fault before