Hi,
I also just started getting the same fault code (O2 sensor negative current control circuit, Bank 1 sensor 1 (P225100)) after replacing my standard coil packs with Audi RS3 coil packs.
If anybody has managed to figure out what this fault has been caused by, kindly advise.
Hi buddy, I have the same problem for 4 years now and I have mentioned it to VW on every maintenance schedule and they can't fix it either. Cannot reset it either using the diagnostic tool. Help!