Exhaust Gas Temperature Sensor 2

The computer is saying there's a problem with one of the temperature sensors that measures how hot the exhaust gases are after they leave the engine. This can affect how the engine runs and the emissions it produces.

The ECU expects a voltage signal from the EGT Sensor 2 that usually ranges between 0.5V to 4.5V corresponding to exhaust temperatures from about 200°F to 1800°F. Any readings outside this range or if the signal is shorted or open could trigger the code.

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.

1. 11. Inspect the wiring and connector for EGT Sensor 2 for damage or corrosion. Ensure connections are tight. Decision: If damaged, repair or replace wiring/connector before proceeding.
2. 22. Measure the voltage output from EGT Sensor 2 at idle. Expect 0.5V to 4.5V based on exhaust temperature. Decision: If readings are out of range, replace the sensor.
3. 33. Check for any exhaust leaks near EGT Sensor 2. Decision: If leaks are found, repair them and retest the code.
4. 44. If sensor and wiring are okay and no exhaust leaks, check the ECU for possible fault. Decision: If ECU is found faulty, replace it.

• Open circuit in the wiring harness
• Short circuit in the wiring harness
• Faulty Exhaust Gas Temperature Sensor 2
• Poor connection at the sensor or ECU
• Exhaust leaks affecting the sensor readings

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