I am getting a check engine light. Does anyone know what this maymean? What bank is bank 2? The passenger? What sensor is 2? After the cat?

P0160 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161 O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

 

What year and mileage does your truck have?
Bank 2 is the pass side sensor 2 is the rear sensor.
Mike

 

If your truck has over 85k on itthen its time to ditch all four of the sensors if its a Disco one and get new ones. Should run around 400 total. You should ask DiscoMike about the website thats the cheapest to get em from, I would tell you but I just cant remember.

 

That is a fun O2 sensor to change. Its plug is up above the transmission... Check the wires and connection before buying a new one though, it could be as simple as the plug coming undone (it was in my case and also in another within the past couple days). P0160 leads me to believe the sensor is either unplugged or the wire harness is damaged.

 

Reference this thread:
https://landroverforums.com/m_26654/tm.htm

Similar problem, different O2 sensor.