I want to make sure I order the correct O2 sensor for my XF 5.0 SC. I have searched the forums with this code (P0142) and haven’t been able to find anything. If someone could share a part no., or diagram, that would help. Which side is “Bank 1”; I assume sensor 3 is posy catalytic converter? Thanks for any guidance!

 

if I recall bank 1 would be pass side

only because I had to replace bank 2 the cat converter and that was drivers