Massey Ferguson 001076.04 – ECU: Low Voltage on Fuel Solenoid (IMV)

The Engine Control Unit (ECU) has detected that the voltage in the fuel solenoid (Inlet Metering Valve or IMV) circuit on the high-pressure fuel pump is below the normal operating range or shorted to a low voltage source. This disrupts the precise control of fuel volume entering the high-pressure pump, which can lead to starting failures, stalling, rough idling, loss of power, or the engine entering limp mode.

• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710 SL
• 5711 SL
• 5712 SL
• 5713 SL
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S

1. 1

   Visually inspect the wiring harness and electrical connector at the high-pressure pump's fuel solenoid (IMV) for chafed or broken wires, loose pins, or corrosion.

2. 2

   With the ignition key in the 'on' position, use a multimeter to check for a stable voltage reading (typically 12V) at the solenoid's electrical connector.

3. 3

   Listen for an audible 'click' from the solenoid when the ignition is turned on, indicating activation. Absence of this sound suggests internal failure or sticking.

4. 4

   Check for a stuck internal plunger in the metering valve by gently tapping on the hydraulic head of the injection pump with a small hammer (temporary diagnostic check).

1. 1

   Safety First

   Ensure the tractor is on level ground, the engine is off, and the key is removed. Disconnect the battery.

2. 2

   Clean the Area

   Thoroughly clean the area around the high-pressure fuel pump and the Inlet Metering Valve to prevent dirt and debris from entering the fuel system upon removal.

3. 3

   Access the IMV

   Depending on the tractor model, you may need to remove covers or other components to gain access to the high-pressure pump and the IMV.

4. 4

   Disconnect Electrical Connector

   Carefully disconnect the electrical harness from the IMV.

5. 5

   Remove the IMV

   The IMV is typically held in place by two or more screws. Remove these screws and carefully extract the valve from the high-pressure pump body. Be prepared for some residual fuel to spill.

6. 6

   Install the New Valve

   Ensure the new valve's O-rings are correctly seated and lubricated with clean diesel fuel. Carefully insert the new valve into the pump and tighten the retaining screws to the manufacturer's specified torque.

7. 7

   Reconnect and Reassemble

   Reconnect the electrical connector and reassemble any other components that were removed for access.

8. 8

   Bleed the Fuel System

   If the fuel system was opened, it may be necessary to bleed any air from the system according to the procedure in your tractor's operator manual.

9. 9

   Clear Fault Codes

   Reconnect the battery. Use a diagnostic tool to clear the 001076.04 fault code from the ECU.

10. 10

    Test Operation

    Start the engine and check for leaks. Monitor engine performance to ensure the issue is resolved.