New Holland ENG 3752 – EDC (Electronic Diesel Control) / Engine Control Unit (ECU): EDC - Zero Fuel Calibration (ZFC): Error in the plausibility of the energizing times of the zero fuel quantity calibration

The Engine Control Unit (ECU) monitors the Zero Fuel Calibration (ZFC) to correct the pilot injection quantity. This fault is triggered when the controller detects an implausible reading or timing error regarding the ZFC quantity calibration. The primary failure mode associated with this code is a faulty ECU/internal communication chip error.

• L220
• SR175
• W50C
• W60C
• W70C
• W80C
• F5C engine
• F5H engine

1. 1

   Verify Active Status: Confirm that the fault is currently active and present, rather than a stored historical code.

2. 2

   Check for Accompanying Codes: Look for other internal communication chip errors or EEPROM faults that would definitively condemn the controller.

1. 1

   Reload the Engine Dataset

   Connect the New Holland Electronic Service Tool (EST) and re-flash/reload the engine dataset to the current Engine Controller.

2. 2

   Re-evaluate

   Cycle the key and operate the machine to see if the fault persists.

3. 3

   Replace the Module

   If the fault persists after the software reload, the Engine Controller (EDC) is faulty and must be replaced.

4. 4

   Restore Parameters

   If the EDC is replaced, you must follow the appropriate service tool procedure via the EST to restore the engine's self-learning parameters.