I am considering trying the Garmin ecoRoute HD OBD-II bluetooth module with the Garmin Nuvi 3790T on my 2002 A2 1.2 3L. The Garmin website states that it is only compatible with diesel cars from 2004 on. Has any one tried the ecoRoute HD? Have later OBD-II ports increased functionality. What information other than diagnostics is available on 2002 OBD-II ports.
audia23l
audia23l