Exhaust Gas Temperature Sensors
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
The exhaust gas temperature sensor is used by the Powertrain Control Module (PCM) to monitoring the exhaust gas temperature. The PCM constantly checks the range and the high temperatures can be an indicator of dangerous conditions that can lead to catastrophic engine failure. Excessively high exhaust gas temperatures are the result of a rich air/fuel ratio.