Hi - bit of advice. My 2002 +8 failed its MOT on emissions - the lambda sensor. Right bank was 1.07, but left bank was 1.1something
Diagnotics says the left bank O2 sensor is probably broken - reading around 5v instead of below 1v?
I'm getting worried because they're saying both cats are much hotter at the front than the back and don't seem to be working quite properly.
So - anyone any experience of this, and what to do, and whether replacing that O2 sensor will suddenly stop the ECU trying to over compensate?
Cheers, Matt
