Morning all, new to the forum but not to Audi's.
Just purchased a Audi S7 V8 petrol 2016 with 96000 miles, lovely car but my ODB2 checks have brought up a error code and i need some advise please.

Error code: P227000 - Oxygen sensor signal stuck lean, bank 1 sensor 2 ( intermittent ) priority 2
Where is this located in the engine bay, and does anyone have images of this?
Can it replaced at home, and not need to put it in the garage and spend a fortune?

Thank you in advance.