ECU 000157.17 – Insufficient Fuel Rail Pressure Development. John Deere System Advisory.

ECU 000157.17 (ECU 157.17)

Code: 000157.17

Shortcode: 157.17


ECU 000157.17 occurs when the ECU cannot detect the required fuel rail pressure of 10 MPa (100 bar, 1450 psi) after the engine has been running for approximately 3 seconds. This may be due to inadequate fuel supply, a malfunctioning fuel pump, or issues with the fuel pressure regulator.


Without sufficient pressure, the engine may fail to start or operate correctly, potentially leading to poor performance and increased emissions.


  • Check Fuel Supply and Pump Operation: Verify that the fuel supply is adequate and that the fuel pump is operational.
  • Inspect Fuel Pressure Regulator and Lines: Evaluate the pressure regulator and lines for any faults or damage that could impede pressure development.
  • Diagnostic Testing: Perform comprehensive diagnostic testing to pinpoint the exact cause of the pressure deficiency.
  • Replace or Repair Faulty Components: Implement repairs or replacements as needed to restore proper fuel rail pressure.
  • Reset ECU and Recheck System: After repairs, reset the ECU and check the system to ensure the fuel rail pressure reaches and maintains the required levels.


Timely detection and correction of fuel pressure issues are vital to prevent engine damage and ensure reliable operation.

Control Units: John Deere

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