P0174 bank 2 running lean
 

Hello guys,

My code is P0174 (bank 2 lean). I scanned my truck and it shows my 0211 (oxygen sensor 1, bank 1) and 0221 (oxygen sensor 2, bank 1) are jumping from .800v to .030v. But my oxygen sensors for bank 2 don't jump around all that much (.800v to .750v). Which o2 sensors should I change?