My ecu no are:
06A 906 018 AQ
Audi A3 AGU 1999 model, first registration 03∕2000.
I'm trying to rote a direct wire from ECU to the diagnostic port. First I unplugged pin 19. When starting, no engine idle, engine goes to halt. But pin 19 have the right colour gray/white....
(Background: not able to read fault codes from diagnostic port, error on connection. Stero unplugged and all modules, no joy...)
Thanks for any help on this matter