Description:

Error code ECU 000656.07 indicates that the ECU has detected a mechanical failure in the electronic injector for cylinder no. 6. This is identified by the lack of a drop in fuel rail pressure during the injection process, suggesting that the injector is not delivering fuel as expected. Mechanical issues can arise from blockages, internal damage, or wear and tear within the injector.

Reaction:

The ECU may disable the injector to prevent engine damage and alert the operator to the fault. This can lead to reduced engine performance and increased emissions due to improper combustion.

Recommendations:

• Inspect Injector for Mechanical Issues: Check the injector in cylinder no. 6 for signs of mechanical failure, such as blockages, internal damage, or excessive wear.
• Clean or Replace Injector: If a blockage is found, clean the injector thoroughly. If there is internal damage or significant wear, replace the injector with a new one.
• Verify Fuel Delivery: Ensure that the fuel delivery system is functioning correctly and that the injector is receiving an adequate fuel supply.
• Test Injector Functionality: After cleaning or replacing the injector, test it to ensure proper fuel injection and a corresponding drop in fuel rail pressure.
• Reset ECU and Verify Operation: Reset the ECU to clear the error code and perform tests to confirm that the injector operates correctly and no further errors are detected.

Note:

Regular maintenance and inspection of fuel injectors are crucial for ensuring reliable engine performance and preventing mechanical failures. Addressing injector issues promptly can help maintain optimal fuel efficiency and engine health.