Raw Exhaust Gas Temperature Sensor 2
Indicates a problem with the second raw exhaust gas temperature sensor.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
Basically, the computer is saying the temperature sensor that measures exhaust gas is either unplugged, shorted, or reading off values, impacting how the engine manages emissions.
What the computer is actually seeing
The engine control module (ECM) detects unrealistic values from the exhaust gas temperature sensor #2, typically due to high voltage, low voltage, or open circuits.
What a healthy reading looks like
Normal operation should show exhaust gas temperatures around 300-800°F (150-430°C) under normal driving conditions, depending on load and engine design.
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.
- 11. Check the wiring and connectors at the exhaust gas temperature sensor #2 for damage or corrosion. If damaged, repair or replace.
- 22. Measure the voltage at the sensor connector with the engine running. You should see a voltage between 0.5-4.5 volts depending on temperature. If outside this range, the sensor may be faulty.
- 33. If the wiring and sensor voltage are good, check for exhaust leaks near the sensor that could be affecting readings.
- 44. If everything looks good, consider checking for ECM updates or replacing the sensor.
Common causes
- Wiring or connector issues to the EGT sensor
- Faulty exhaust gas temperature sensor
- Exhaust leaks near the sensor
- ECM software glitches
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but should be fixed soon as it can affect emissions and performance.
Will this code come back after clearing?
If the issue is not resolved, it will come back after clearing the code.
Why does this code pair with others?
It's common for multiple sensors affected by the same issue to trigger codes simultaneously.
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