Just an update for you all, I used this method here to short some PINs of the OBD2 port to get the lights to blink on the ECL. The lights blinked '41' meaning the error message given was DTC P0134: A/F (Sensor 1) No Activity Detected.
Anyone know where's the cheapest place to obtain a primary O2 sensor for the EP3? Is it the same part as the AUDM DC5R?
I hear Honda sells it for $500 genuine and that's nuts.
Cheers.