A blockage in the fuel return line back to the tank can cause pressure to build up beyond safe limits.
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
: New Holland equipment often comes equipped with a diagnostic system that can be accessed through the instrument panel or an external diagnostic tool. This system can provide more detailed information about the error. A blockage in the fuel return line back
When the 3297 error code appears, you may notice one or more of the following symptoms: When the sensor shorts internally or the supply