Description:

Error code ECU 000157.01 indicates that the fuel rail pressure is extremely low, which could signify issues such as fuel pump failure, clogged fuel filters, or leaks in the fuel system. This condition can severely affect engine performance and may lead to stalling or difficulty in starting the engine.

Reaction:

The ECU may limit engine power to prevent damage or stalling due to inadequate fuel delivery.

Recommendations:

• Inspect Fuel System: Check the fuel pump operation, fuel filters, and lines for blockages or leaks.
• Measure Fuel Rail Pressure: Use specialized tools to measure the actual fuel rail pressure to diagnose the cause of the drop.
• Replace or Repair Faulty Components: Depending on the diagnosis, replace the fuel pump, clean or replace fuel filters, and repair any leaks in the fuel system.
• Reset ECU and Clear Error Codes: After addressing the issue, reset the ECU to clear the fault code and ensure that the system recognizes the restored pressure levels.

Note:

Regular maintenance of the fuel system is essential to prevent issues related to fuel delivery and to maintain optimal engine performance.