Heavy Equipment Repair

How to Solve Perkins 1106D EPG Engine E398 Low Fuel Rail Pressure Error

Here is the illustration show you guide on how to solve Perkins 1106D electric power generation E398 low fuel rail pressure error.

 

Preparations:

Perkins EST 2024A & 2023A & 2019A Software Free Download

Perkins SPI2 2018A EPC+Service Manual Free Download

Perkins Communication Adapter 3

 

 

Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects a fault with low fuel rail pressure. The ECM detects the following faults:

  • The ECM determines that the expected fuel rail pressure is lower than the pressure that is
    requested by the electronic control system.
    • Diagnostic code 262-3 5 Volt Sensor DC Power Supply voltage above normal is not active.
    • Diagnostic code 262-4 5 Volt Sensor DC Power Supply voltage below normal is not active.
    • Diagnostic code 1797-3 Fuel Rail Pressure Sensor voltage above normal is not active.
    • Diagnostic code 1797-4 Fuel Rail Pressure Sensor voltage below normal is not active.
    • No diagnostic codes are active for the fuel rail pump.
    • No diagnostic codes are active for the fuel injectors.

System Response:
The warning lamp will be illuminated and the diagnostic lamp will flash the event code.
The event code will be logged.

Possible Performance Effect:

E398-2
The derate lamp will be illuminated.
The engine will be derated until the keyswitch is turned to OFF and then turned to ON.

Troubleshooting:
Low fuel pressure may be caused by the following faults:
• A fault in the fuel return system
• A fault in the fuel pressure control
• A leak in the high pressure fuel system
• A failed relief valve, the fuel pump or an electronic unit injector

 

The event code does not represent a fault in the electronic system. Refer to Systems Operation,
Testing and Adjusting, “Fuel System – Inspect”.

Results:
• OK – STOP.

 

More trouble repair case for Perkins,pls refer to:Perkins Trouble Repair

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