CLAAS 7730h – Claas Eng A15 Engine Module: Fuel Pressure Sensor Input Voltage Issue

The input voltage of the fuel pressure sensor in the common rail low is not functioning properly. The engine calculator (ENG A15) reduces engine power by 20% per minute until it reaches 50% of its nominal power. It also manages the high pressure pump to maintain 2 000 bar pressure in the common rail by opening the pressure restricter.

1. 1

   The fuel pressure sensor of the common rail (B42)

2. 2

   The engine module ENG (A15)

1. 1

   Inspect

   Inspect the fuel pressure sensor of the common rail (B42) for damage or loose connections.

2. 2

   Test

   Test the input voltage of the fuel pressure sensor of the common rail (B42) using a multimeter.

3. 3

   Check

   Check the engine module ENG (A15) for proper operation and connection to the fuel pressure sensor.