Description:

Error code ECU 000105.15 indicates that the mixed air temperature in the exhaust gas recirculation (EGR) system is slightly above the normal range. While not immediately critical, this elevation in temperature can affect engine efficiency and emissions if not addressed.

Reaction:

The engine may continue to operate normally but could experience slight reductions in efficiency or increases in emissions due to the slightly elevated temperatures.

Recommendations:

• Monitor and Test EGR System: Regularly check the EGR system and its components, such as the temperature sensor and EGR valve, for proper operation.
• Clean EGR Valve and Cooler: Remove any carbon build-up from the EGR valve and cooler, which can contribute to increased temperatures.
• Check Sensor Calibration: Ensure the temperature sensor is calibrated correctly to provide accurate readings.
• Adjust EGR Control Settings: If necessary, adjust the EGR control settings to compensate for any detected anomalies.
• Comprehensive Engine Check: Perform a comprehensive engine check to ensure that no other factors are contributing to the temperature increase.

Note:

Regular monitoring of the EGR system’s performance is essential to detect slight changes in conditions that could escalate into more serious issues.