My car threw the P0430 code, so I went ahead and got both of the OEM Denso sensors and am ready to go. hopefully it's just a bad sensor and not the cat. Was wondering, What would be the best method to go about replacing the sensors in Bank 2?

 

The Bottom wasn't difficult at all. jack the car up on the front right side, crawl under and it's right there. unplugging the sensors, I disconnected the battery and removed the tray which gave me enough room. to get to sensor one, I removed the air filter box moved the wire harness out of the way and unbolted the hood latch too move the front air intake piece forward to give me some room.

 

Pictures in the thread below may help the next person locate of the oxygen sensors you're talking about, bank 1 (firewall-side) and bank 2 (radiator-side), upstream (inlet-side of the catalytic converter) and downstream (outlet-side).

https://www.jaguarforums.com/forum/x...-where-129374/