New Holland 3102: Low Fuel Supply or CP3 Malfunction

The fault code indicates a problem related to the fuel supply to the CP3 or an issue with the CP3 itself. This may include a restricted fuel filter, low output from the CP3, or a fault in the CP3 Pulse Width Modulation (PWM) signal.

1. 1

   Fuel filter condition and restriction

2. 2

   CP3 output performance

3. 3

   CP3 PWM signal integrity

1. 1

   Inspect the fuel filter for blockage or restriction.

   Check the fuel filter for dirt, debris, or clogging that may be limiting fuel flow to the CP3.

2. 2

   Test the CP3 output.

   Use appropriate diagnostic tools to measure the output of the CP3 and compare it to manufacturer specifications.

3. 3

   Check the CP3 PWM signal.

   Use a diagnostic tool such as Atlas to verify the PWM output. At engine idle, the PWM should be at least 3%, and at full load, it should not exceed 24%.

4. 4

   Inspect for excessive fuel leakage.

   If the PWM exceeds 24%, remove the fuel return lines to check for excessive fuel leakage from the overpressure valve in the rail or from the Injector/transfer tube.