Case IH NH3102: CP3 Fuel Pump Performance Issue

The fault code indicates a problem with the CP3 fuel pump, likely due to low fuel supply or low output. It may also be related to a CP3 PWM fault, where the pulse width modulation signal is not within the expected range.

1. 1

   Fuel filter restriction

2. 2

   Fuel supply pressure to CP3

3. 3

   CP3 output performance

4. 4

   CP3 PWM signal in Atlas

1. 1

   Inspect

   Check for fuel filter restriction and replace if necessary.

2. 2

   Measure

   Verify fuel supply pressure to CP3 using appropriate tools.

3. 3

   Test

   Evaluate CP3 output performance according to service manual procedures.

4. 4

   Analyze

   Check CP3 PWM signal in Atlas, ensuring it meets the specified range (minimum 3% at engine idle, maximum 24% at full load).