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Re: Engine management light on after front brake discs replaced
Bank1 sensor 2 is the rear sensor after the cat convertor.
It could be the sensor or wiring.
It could be because the cat is failing.
It could be because the car was running rough for a while and the emmissions were out of spec.
Lot's of could be's so don't just throw a new sensor in there.
If the light has gone off and the car runs ok, I wouldn't worry until it comes on again.
Currently in lancs dave's garage:
Scenic 1.4ish 2002. Clio 1.2 2002. Thunderbird 885 1995, Suzuki Gsx600f 1989. Fazer 600 2002. Specialist cement mixer for proffessionals only, not yer average forum numpty. Your car is probably worth more than all that lot put together.