New Holland 2311 – ENGINE (ECM/ECU): Electronic Fuel Injection Control Valve Circuit Issue

The fault code indicates an open circuit, short circuit to ground, or abnormal resistance within the electrical circuit of the Electronic Fuel Injection Control Valve (also known as the fuel pump actuator, fuel dosing actuator, or fuel metering control valve). The Engine Control Module (ECM) uses a PWM signal to manage this valve and regulate fuel entering the high-pressure pump. A circuit interruption can cause fuel rail pressure to exceed commanded levels, potentially triggering the pressure relief valve to open and resulting in reduced engine power.

• T6
• T7
• T8
• T9
• T6000
• T7000
• CR Series Combine
• CX Series Combine

1. 1

   Verify battery voltage is adequate (above 12.1V) and ensure all main ground connections to the chassis are clean and tight.

2. 2

   Inspect the wiring harness and connectors between the ECM and the fuel injection control valve for chafing, breaks, or corrosion.

3. 3

   Check the metering unit connector for dust, debris, or contamination that could cause a poor connection.

4. 4

   Check for continuity and resistance in the engine wiring harness between the ECM connector and the valve connector.

5. 5

   Perform a resistance test across the two terminals of the disconnected valve and compare to manufacturer specifications.

6. 6

   Perform a 'click' test by actuating the valve via a diagnostic scanner or applying direct power/ground to confirm the solenoid is not seized.

1. 1

   Confirm the Fault

   Verify that fault code 2311 is active using a diagnostic scanner. Note any other associated fault codes.

2. 2

   Perform Diagnostic Checks

   Follow the diagnostic steps outlined, starting with a visual inspection of the wiring and connectors.

3. 3

   Isolate the Fault

   Based on the diagnostic checks, determine if the fault lies with the injection control valve itself, the wiring harness, or the connectors.

4. 4

   Repair or Replace

   If the wiring or connectors are damaged, repair or replace them as necessary. Ensure all connections are clean and secure. If the injection control valve is determined to be faulty (e.g., incorrect resistance), it should be replaced.

5. 5

   Installation Notes

   When replacing the valve, it is crucial to maintain cleanliness, as any contamination can damage the sensitive components of the common rail system.

6. 6

   Clear Codes and Verify Repair

   After the repair is complete, clear the fault code from the ECM using a diagnostic tool. Cycle the key several times before starting to allow the system to build pressure, then start the engine and let it run to ensure the code does not reappear.