Use a diagnostic tool to monitor the "commanded vs. actual" fuel pressure to see if the pump can reach its set point. Wiring Check:
The number one cause of code 3297 is a failed or failing position/draft sensor located on the rockshaft housing. These sensors are potentiometer-based or Hall-effect sensors that send voltage feedback to the HCU. When the sensor shorts internally or the supply wire breaks, the voltage drops below 4.5V (or below 2.5V on some systems), triggering 3297. New Holland 3297 Error Code
The New Holland 3297 error code is a diagnostic trouble code (DTC) that indicates a problem with the tractor's engine or transmission system. This code is usually displayed on the tractor's dashboard or can be retrieved using a diagnostic tool. Use a diagnostic tool to monitor the "commanded vs
October 2025 Always refer to your specific model’s technical manual for exact pinouts and calibration procedures, as variations exist between New Holland product families. This code is usually displayed on the tractor's