The Fuel Pressure Sensor (FPS) is installed into the secondary fuel filter. See Figure 20414 . The FPS is not used in all applications. The FPS sends an electrical signal to the ECM telling it what the engine fuel pressure is at any given speed.
Engine Fuel Pressure Sensor
On Series 50G engines with the high pressure fuel system the fuel pressure sensor is installed in a tee at the inlet to the low pressure regulator. See Figure 34515 .
1. Fuel Temperature Sensor
5. Air Inlet Elbow
6. Low Pressure Regulator
3. Fuel Mixer
7. Air Temperature Sensor
8. Fuel Pressure Sensor
9. Fuel Inlet Tee Fitting
Fuel Pressure Sensor for Series 50G
The FPS is non-serviceable and should be replaced as a unit. No adjustment is required.
Remove the FPS as follows:
Install the FPS as follows:
Note: The FPS is an electrical device. Use care on installation.