Description:

This diagnostic trouble code, ECU 000651.07, is triggered when the ECU detects that the fuel rail pressure does not drop while injecting fuel into cylinder no. 1, indicating a mechanical failure of the injector.

Reaction:

The ECU may disable the injector to prevent engine damage and alert the operator of the fault.

Recommendations:

• Inspect Injector for Mechanical Issues: Check the injector in cylinder no. 1 for signs of mechanical failure, such as blockages or damage.
• Test Fuel Delivery: Verify that the injector is receiving fuel and that the fuel delivery system is functioning correctly.
• Replace Faulty Injector: If the injector is found to be mechanically defective, replace it with a new one.
• Reset ECU and Verify Operation: After replacing the injector, reset the ECU and perform tests to ensure that the injector operates correctly and no further errors are detected.

Note:

Mechanical failures in injectors can severely impact engine performance. Regular inspection and maintenance are crucial to ensure reliable operation and fuel delivery.