Help, code p2270
 

Hi i have the CEL on in my car throwing p2270 code , it's about the o2 sensor? rear or front, I will appreciate your help

https://www.rx8club.com/series-i-tech-garage-22/cel-code-list-212975/

It's the rear.

ok thank, I look and I couldn't find thread
This causes low fuel economy?

It can affect your mileage, yes.

Many other things can as well though.