a P2098 code means a downstream O2 sensor but which one driver's side or passenger side

Question

My 2004 Ram 1500 5.7L is throwing a P2098 code. I realize that means a downstream O2 sensor, but which one driver's side or passenger side?

Answer 1

P2098 Downstream fuel trim lean bank 2

Downstream is catalytic and upstream are engine monitor, A rule of thumb . Bank 1 is where cylinder 1 is located at, and go along that side, If its bank 2 you go where cylinder 2 is located at ,