Exhaust Gas Temperature Sensor
The exhaust gas temperature sensor measures how hot the exhaust gases are at key points in the exhaust.
What is Exhaust Gas Temperature Sensor?
Diesels often have several, before the turbo, before the catalyst and before the particulate filter. They protect the turbo and catalyst from overheating and control filter regeneration. Most are thermistors or thermocouples with a long cable to a connector.
How it works
The resistance or voltage of the sensor changes with temperature and the control unit converts it into degrees.
Why it matters for your car
A faulty sensor can stop regeneration and set codes. They are exposed to heat and can seize in the exhaust; penetrating oil helps removal.
Other terms
- Alloy Wheel
- Anti-Lag System (ALS)
- Backprobing
- Closed Loop (Fuel Control)
- Coolant Expansion Tank
- Dipped Beam (Low Beam)
- Drag Coefficient (Cd)
- Driveline Clunk
- Electronic Stability Control (ESC)
- Engine Displacement (Engine Capacity)
- Engine Overheating
- Exhaust Manifold
- International Driving Permit (IDP)
- Parking Pawl
- Self-levelling Suspension
- Series Hybrid
- Skidding (Losing Grip)
- Swirl Flaps
- VIN (Vehicle Identification Number)
- Wheel Trims (Hubcaps)