ECU 002659.14 – EGR Flow Signal Fault. John Deere System Advisory.
ECU 002659.14 (ECU 2659.14)
Code: 002659.14
Shortcode: 2659.14
Description:
Error code ECU 002659.14 is activated when there is a significant discrepancy between the actual EGR flow signal and the flow calculated based on temperature sensors. This inconsistency can indicate a malfunction within the EGR system that affects its ability to properly regulate exhaust gases.
Reaction:
The ECU may adjust or limit engine performance to compensate for the perceived inaccuracies in EGR flow, potentially affecting the engine’s efficiency and emissions output.
Recommendations:
- Calibrate EGR and Temperature Sensors: Ensure that both the EGR flow and temperature sensors are properly calibrated to provide accurate readings.
- Inspect Sensor Functionality: Test both the EGR flow sensor and the temperature sensors to identify any discrepancies or malfunctions.
- Resolve Sensor Discrepancies: Adjust or replace any sensors that do not provide accurate data.
- Verify System Integration: Check that all components of the EGR system are integrated and communicating effectively without interference or data corruption.
- Reset ECU and Perform Diagnostic Tests: After making necessary repairs or adjustments, reset the ECU to clear the fault codes and perform diagnostic tests to ensure all systems are now operating correctly.
Note:
Accurate data from both flow and temperature sensors is crucial for the EGR system to function effectively. Regular maintenance and calibration of these sensors are essential for ensuring reliable performance and compliance with emission standards.