EGR Cooler Temperature Sensor 2
Indicates a problem with EGR cooler temperature sensor 2.
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)
The EGR cooler temperature sensor 2 reports how hot the exhaust gas is after it passes through the cooler. If it's too high or too low, the engine computer thinks there's a problem with the cooler or sensor.
What the computer is actually seeing
The computer expects the temperature after the EGR cooler to be between 130°F (54°C) and 180°F (82°C). If it sees values outside of this, it triggers the fault.
What a healthy reading looks like
Normal operation should see temperatures fluctuate between 130°F and 180°F (54°C to 82°C) during different engine conditions.
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 EGR cooler temperature sensor 2 wiring and connector for damage or corrosion.
- 22. Measure resistance of the EGR cooler temperature sensor 2 at ambient temperature; expected resistance around 2 kΩ at 70°F (21°C).
- 33. Inspect the EGR cooler for signs of coolant leaks or blockages.
- 44. Check the engine coolant level and condition, ensuring it's full and not contaminated.
- 55. Use a scan tool to monitor live data and confirm if the EGR cooler temperature sensor 2 is giving accurate readings within expected values.
Common causes
- Faulty EGR cooler temperature sensor 2
- Wiring issues or connector problems
- Coolant level low or excessive cooling system pressure
- Faulty EGR cooler
- Engine overheating issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Moderate severity means you can drive but should fix it soon to avoid further damage.
Will this code come back after clearing it?
If the underlying problem isn't fixed, yes, it will return.
Why does this code pair with others?
EGR systems work together, so issues with one component can trigger codes in others.
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