DTC P0140-24: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) - Signal stuck high: Action
WARNING: This page is about a different car, the 2015 Land Rover LR2, 2014 Land Rover LR2, and 2013 Land Rover LR2. However, it is still accessible from the selected car via links, so may be relevant.
- Check heated oxygen sensor rear is correctly installed on catalyst
- Refer to the appropriate system wiring diagrams and check the heated oxygen sensor rear circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Check for air leakage between catalyst and exhaust manifold flange
- Check heated oxygen sensor rear for tip contamination by excessive oil consumption. Carry out oil consumption check
- Check heated oxygen sensor rear for tip contamination by poor or incorrect fuel. Check customer is using correct grade of fuel
- Check and install new heated oxygen sensor rear as required