Exhaust Temperature Diagnostics

Proving sensor vs wiring vs actual temperature problems

Learn EGT sensor operation, plausibility checking, and how to prove whether a temperature fault is the sensor, the wiring, or a real exhaust problem.

1. 1.EGT Sensor Operation
2. 2.Thermocouple vs Thermistor Concepts
3. 3.Sensor Locations Through the System
4. 4.Temperature Plausibility
5. 5.Temperature Rise During Regeneration
6. 6.Sensor Drift & Incorrect Readings
7. 7.Open Circuits, Shorts & Wiring Faults
8. 8.Connector Problems
9. 9.Comparing Multiple Temperature Sensors
10. 10.Sensor vs Wiring vs Real Temperature: Proving It