Engine Control System/Fuel System

Fuel Pressure Sensor (FPS) Description and Operation

~1min read

Description

The Fuel Pressure Sensor (FPS) is installed in the upper part of the low-pressure fuel pump module. It measures the pressure in the low-pressure fuel line. Based on the fuel pressure measured by the FPS and the amount of fuel consumed, the Fuel Pump Control Module (FPCM) determines whether to activate the low-pressure fuel pump. After activating the low-pressure fuel pump, the FPS continues to supply fuel pressure information to the FPCM, and the FPCM continues to estimate fuel consumption using the feedback information from the FPS.

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