ECU 002798.05 – Injection Valve Supply Voltage 2, Resistance Too High. John Deere System Advisory.
ECU 002798.05 (ECU 2798.05)
Code: 002798.05
Shortcode: 2798.05
Description:
This error code occurs when there is excessive resistance in the circuit to the second injection valve, suggesting an open circuit. This condition can disrupt fuel delivery, leading to engine performance issues.
Reaction:
The ECU might limit engine power or alter other operational parameters to safeguard the engine from erratic behavior due to disrupted fuel injection.
Recommendations:
- Check Injection Valve Circuitry: Examine all wiring and connections for breaks or disconnections causing an open circuit.
- Measure and Diagnose Circuit Resistance: Utilizing a multimeter, check for higher than normal resistance levels in the circuit.
- Repair Open Circuit: Correct any issues found by repairing or replacing the affected components to ensure continuity.
- Reset ECU and Test System Functionality: After addressing the fault, reset the ECU and conduct thorough testing to ensure the fuel injection system is operational and stable.
Note:
Maintaining electrical continuity in fuel injection circuits is crucial for consistent engine performance and reliability. Regular checks can prevent issues associated with high resistance and open circuits.