@symphony2627 best to see and to get to with the vehicle on a lift.
[image|708497]
Oxygen sensors bank 1 is any sensor upstream the catalytic converter and bank 2 is downstream. you'll have one before and one after the catalytic converter. Even so the attached image shows a dual exhaust it also applies to single exhaust but will of course only have two sensors. [https://www.youtube.com/watch?v=Z97b1t8i020|This video] might help you further.