Massey Ferguson 1076.14 – Engine Control Unit (ECU): Open Circuit On Fuel Solenoid On High Pressure Pump

The control module has detected a break in the electrical connection to the fuel solenoid on the high-pressure pump, either due to a severed wire, a disconnected or corroded plug, or an internal failure (burned-out coil) within the solenoid itself. This prevents the pump from building enough rail pressure, resulting in a no-start condition or severe power loss.

• 4710
• 7724S
• 5712SL
• Interim Tier 4 (2012-2015)
• 7722
• 7722S
• 7615
• 5613
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 7616
• 7618
• 5608
• 4708
• 7619
• 7626
• 7726S
• 7624
• 4707
• 4709
• 5711SL
• 7614
• 7718S
• 5610
• 7620
• 7719
• 7714
• 7716S
• T4 (2015-2021)
• 5612
• 7622
• 7720
• Tier 4 (2015-2021)
• 5611
• 7715S
• 5609
• 7724

1. 1

   Inspect the wiring harness running from the Engine ECU to the high-pressure fuel pump for chafed wires, rodent damage, or melted insulation.

2. 2

   Disconnect the plug at the fuel solenoid and check for pushed-back pins, corrosion, or moisture inside the connector.

3. 3

   Using a multimeter, check the continuity of the actuator wires between the ECU harness connector and the solenoid connector to rule out a broken wire.

4. 4

   Measure the resistance across the pins of the fuel solenoid itself. If the multimeter reads 'OL' (Open Loop) or infinite resistance, the internal coil has failed.

1. 1

   Safety First

   Disconnect the tractor's battery to prevent electrical shorts. Ensure the engine is cool, as the fuel system operates under extreme pressure (up to 23,500 PSI). Caution: Never crack open high-pressure lines while the engine is cranking or running.

2. 2

   Clean the Area

   Thoroughly clean the exterior of the high-pressure fuel pump and the base of the solenoid with brake cleaner. It is critical that no dirt or debris enters the high-pressure pump during removal.

3. 3

   Disconnect

   Unplug the electrical connector from the fuel solenoid.

4. 4

   Removal

   Remove the mounting screws (usually Torx or Allen head) securing the solenoid to the pump housing. Carefully twist and pull the solenoid straight out.

5. 5

   Preparation

   Inspect the bore on the pump for any debris. Take the new fuel solenoid and lubricate its O-rings with clean diesel fuel to prevent tearing during installation.

6. 6

   Installation

   Push the new solenoid firmly into the pump housing until it seats flush. Install and torque the mounting screws to the manufacturer's specifications.

7. 7

   Reassembly

   Reconnect the electrical harness plug. Reconnect the battery.

8. 8

   Prime and Clear

   Turn the key to the 'ON' position to allow the low-pressure lift pump to prime the system. Connect a diagnostic tool to clear the 001076.14 fault code from the ECU, then start the engine and check for leaks.