ismith

16pin OBD2 and 2x2 connectors - VAG-COM - Edinburgh

Economy has dropped by 15% on my VR6 around town. The plugs are black. Compression fine. The O2 sensor is new and I checked for leaks on the inlet manifold and purge solenoid. Idle adaptation still low. If I do an ECU reset, the economy is back to normal for a while. Any ideas what could be making the adaptation value go down so low? Thursday 1 February 2007 16:38:30 021 906 258 B MOTOR PMC 1 O2 Idle Part Throttle Full Throttle Active Adapted Value Adapted Value Adapted Value 1.016 0.789 1 0.953 0.992 0.789 1 0.953 1 0.789 1 0.953 1 0.789 1 0.953 1.016 0.789 1 0.953 0.992 0.789 1 0.953 1 0.789 1 0.953 1.016 0.789 1 0.953 0.992 0.789 1 0.953 1.008 0.789 1 0.953 1.016 0.789 1 0.953 0.992 0.789 1 0.953 0.992 0.789 1 0.953 0.992 0.789 1 0.953 1.016 0.789 1 0.953 1.008 0.789 1 0.953 0.984 0.789 1 0.953 1.008 0.789 1 0.953 1.016 0.789 1 0.953 0.992 0.789 1 0.953 1.008 0.789 1 0.953 0.992 0.789 1 0.953

I think you'll stand more of a chance with a serial port adaptor. These USB ones are less flexible with their timing.

I borrowed a 3rd party USB adaptor and can access the ECU on my 93 VR6, but not the ABS. Got the ABS light flashing too and "Too many communications errors". VAGCOM 409 or 311 both unhappy. Feedback is that the adaptor is just not good enough on its timing to please the ABS. Bummer. Rear caliper is seized. Would that turn on the ABS light?