Bank 1 sensor 2 02 not getting much voltage.

How did this turn out?! I'm getting the same N/A readings.

 

First thing to do is, check for obvious wire issues, cut/spliced wires, or any issues with the connector on the affected bank (like, if you live in a road-salt area, check for obvious corrosion).
If nothing, two options....

A) Sanity check/money saver, which may or may not be possible.
Denso is he OEM manuf'er, look up the correct "exact fit" parts at www.densoautoparts.com (note: Sometimes O2 sensors are called a/f or air/fuel sensors) and note the part numbers - be careful, because 2WD ("RWD") and 4WD sometimes use different sensors - read the part notes.
If you find the Denso part lookup tool shows your downstream sensors (left and right) share the same part number, you may do a sanity check by swapping the after-cat sensor between the two banks to see if the code changes. If so, you know it's a wiring problem, not a sensor problem. But it's not uncommon for sensors to go bad.

B)
Replace the upstream and downstream on the affected bank/side.
ONLY use Denso brand parts for that specific part, they're the OEM manuf'er, again, look up the correct "exact fit" part numbers at www.densoautoparts.com (note: Sometimes O2 sensors are called a/f or air/fuel sensors)
DO NOT purchase your parts from scAmazon or fleaBay, too many knockoff parts are sold there (Rock Auto is safe, Summit Racing is also safe).

I am curious what @Martini8875 found. I forgot about this post totally.

 

Thanks for such a thorough response and help shifty! @Martini8875 Yes, still curious.