Oxygen Sensor Locations

Reference: Lexus 2000 LX470 Repair Manual

After the engine under cover has been removed, access to oxygen sensors "bank 1, sensor 1" and "bank 2, sensor 2" is relatively straightforward, albeit a little tight.

On "bank 1, sensor 1," I had to use my 22mm crow foot wrench socket with extension because a nearby metal heat shield interfered with my using my standard 22mm oxygen sensor socket.

On "bank 2, sensor 2," removal was a breeze with my standard 22mm oxygen sensor socket.