Hello everyone, Engine light came on today so I got it scanned and I received Code P2272 indicating bank 2 sensor 2 oxygen sensor did not switch from ?lean? to ?rich? for a predetermined period of time during self-test. So, should I replace bank 2 sensor 2? If so, I wouldn't know where to begin. What will be the (best) proper recommended brand to go with and where is bank 2 sensor 2 located on 2010 Chevrolet Malibu LT 3.6L SFI DOHC 6cyl? Is it the upstream or downstream sensor?? I'm sorry, I'm new here and if this question has been answered my apologies. I've searched google for images related to this with no luck.

Thanks in advance everyone.

 

I've been getting this pretty much ever since I got the truck. The dealership swears it's a software glitch and they'll call when there's an update. Meanwhile, it lights up every couple of weeks and sometimes twice in the same week.

2015 Silverado 2500HD Bi-fuel