EGR Temperature Above Normal Operating Range
The EGR temperature is too high for proper function.
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What it means (plain English)
The exhaust gas recirculation (EGR) system helps reduce emissions by recycling exhaust gases. When the temperature of these gases gets too high, it can indicate an issue like clogged components or excessive engine temperatures.
What the computer is actually seeing
The engine control module (ECM) monitors the EGR temperature sensor output. Normal operation shows a temperature typically between 160°F (71°C) and 200°F (93°C). If it exceeds 200°F (93°C), the ECM triggers the fault code.
What a healthy reading looks like
EGR temperature should not exceed 200°F (93°C).
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 for the EGR temperature sensor for damage or corrosion. Fix any found issues.
- 22. Inspect the EGR system for blockages using a scan tool to monitor EGR flow; it should be active during operation.
- 33. Check engine coolant level, as low coolant can cause overheating and affect EGR operation. Top off if low.
- 44. Validate the EGR temperature sensor using a multimeter; at 70°F (21°C), it should read approximately 0.5V, increasing with temperature. Replace if it reads out of range.
- 55. If the temperature sensor checks out, use an infrared thermometer to measure the actual EGR temperature to compare with the ECM. If actual is high, check for clogs or leaks in the EGR system.
Common causes
- EGR cooler malfunction
- Clogged EGR passages
- Exhaust leaks
- Faulty EGR temperature sensor
- Engine overheating issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive for long periods as high EGR temperatures can lead to further engine damage.
Will this code come back after clearing it?
Yes, if the underlying issue isn't fixed, the code is likely to return.
Why does this code pair with high coolant temperature codes?
High EGR temperature can be a symptom of your engine running too hot, which may trigger both codes.
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