Massey Ferguson E9153 – Engine ECU: Fuel filter pressure sensor, loose contact

Indicates an electrical fault—specifically an open circuit, signal loss, or loose connection—at the sensor that monitors the fuel pressure at the fuel filter.

• Massey Ferguson 8600 Series
• Massey Ferguson 4700 Series (4707, 4708, 4709, 4710, T4 models from 2015-2021)
• Massey Ferguson Dyna 4 transmission models

1. 1

   Check the fuel level in the tank

2. 2

   Inspect the fuel filter pressure sensor connector for a loose contact, backed-out pins, or corrosion

3. 3

   Check the sensor wiring harness for an open circuit or short circuit to ground

4. 4

   Verify the 5V reference voltage supply and ground at the sensor connector using a multimeter

5. 5

   Check the physical condition of the fuel filters to ensure they are not heavily restricted

1. 1

   Verify that the tractor has an adequate fuel level in the tank.

2. 2

   Locate the fuel filter pressure sensor on the engine's fuel filter housing.

3. 3

   Disconnect the sensor harness.

   Inspect the connector terminals for moisture, corrosion, or loose pins (as the code specifically points to a "loose contact").

4. 4

   Test the wiring harness for continuity back to the Engine ECU and ensure the sensor is receiving its 5V supply.

5. 5

   Repair any damaged wiring or replace the connector pigtail if a loose contact is confirmed.

6. 6

   If the wiring and voltage are correct but the code remains active, the sensor itself has failed internally and must be replaced.

7. 7

   If actual fuel pressure drops are suspected alongside the electrical fault, replace the main fuel filters.

8. 8

   Clear the fault codes from the Engine ECU and test run the machine to verify the code does not return.