Exhaust Gas Temperature Sensor 2
Indicates an issue with the exhaust gas temperature sensor 2 circuit.
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What it means (plain English)
The Exhaust Gas Temperature (EGT) Sensor 2 is supposed to measure the heat in the exhaust system. If this reading is way off, it can mean the sensor is damaged or there’s a wiring problem.
What the computer is actually seeing
The engine control unit (ECU) expects a signal from the EGT sensor of around 0.5V to 4.5V, depending on the temperature. If it sees a voltage outside this range, it triggers the fault code.
What a healthy reading looks like
Normal operating range for EGT sensors is between 300°F to 2000°F (150°C to 1093°C), corresponding to a voltage from approximately 0.5V to 4.5V.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the EGT Sensor 2 wiring for shorts or open circuits. Voltage should be between 0.5V and 4.5V when the engine is running.
- 2Inspect the EGT Sensor 2 connector for corrosion or damage.
- 3If wiring and connectors are good, use a multimeter to test the EGT Sensor 2. It should show resistance within the expected range; if not, replace the sensor.
- 4Clear the code and run the engine to see if it returns. If it does, further diagnose the exhaust system for leaks.
- 5If the code does not return, monitor vehicle performance and sensor readings to ensure proper operation.
Common causes
- Faulty Exhaust Gas Temperature Sensor 2
- Wiring issues in the sensor circuit
- Poor connector condition or corrosion
- Exhaust leaks affecting temperature readings
Typical repair cost
$$ - $$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it is drivable, but it's recommended to fix it soon to avoid potential damage to other components.
Will this code come back after clearing it?
It may come back if there's a persistent issue with the sensor or wiring.
Why does this code pair with other codes?
Often, multiple sensors and their readings are interrelated; issues with one can affect the readings of others.
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