LEWISO97 Posted December 11, 2023 Share Posted December 11, 2023 Having issues with my AUDI A7 2O19 3.0 DIESEL. Fault code P220B; NOx sensor supply voltage circuit bank 1 sensor 2. I know these are a common fault after speaking with the very useful warranty company. Can anyone assist on where to find this sensor and any tips or tricks to try fix it before getting audi involved to replace it. Kind regards Quote Link to comment Share on other sites More sharing options...
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