ECU 002630.16 – Exhaust Gas Recirculation (EGR) Fresh Air Temperature Moderately High. John Deere System Advisory.

ECU 002630.16 (ECU 2630.16)

Code: 002630.16

Shortcode: 2630.16


Error code ECU 002630.16 is set when the exhaust gas recirculation (EGR) fresh air temperature, specifically at the charge air cooler outlet, is detected to be moderately above the specified threshold. This condition may affect the efficiency of the EGR system, which is critical for controlling emissions and maintaining engine performance.


The ECU may adjust EGR operation or engine parameters to mitigate the impact of the elevated temperature and maintain compliance with emission standards.


  • Inspect the Charge Air Cooler: Check for any issues such as clogging, damage, or inefficiencies that might be causing the increased temperature.
  • Evaluate EGR System Components: Ensure that all components of the EGR system are functioning properly, including valves and sensors.
  • Monitor Sensor Accuracy: Verify the accuracy of temperature sensors and replace them if they provide faulty readings.
  • Improve Cooling Efficiency: Consider cleaning or replacing the charge air cooler if it is not effectively reducing the temperature.
  • Reset ECU and Reassess Performance: After making necessary adjustments, reset the ECU to clear the fault and test the system to ensure temperatures are within acceptable ranges.


Maintaining optimal temperature levels in the EGR system is crucial for emission control and engine efficiency. Regular monitoring and maintenance are recommended to avoid issues that could lead to elevated temperatures.

Control Units: John Deere

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