Hi my check engine light is on and is basically telling me I need all around new o2 sensors. When looking around online I couldn’t tell if all 4 sensors are the same. Or if I need separate sensors for the 2 upstream and the 2 downstream?

 

Your 1996 is known by the factory code of X300, the forum for that is here: https://www.jaguarforums.com/forum/xj-xj6-xjr6-x300-26/

The sensors do have different length wires, so the upstream and downstream are different

 

Alright I’ll talk about it there thank you