Hyundai Sonata LF: Fuel Delivery System / Fuel Pressure Sensor (FPS) Description and Operation
Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Pressure Sensor (FPS) Description and Operation
| Description |
The fuel pressure sensor (FPS) is installed on the top of the
low pressure fuel pump and 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 provide the fuel pressure information to the FPCM and the
FPCM keeps controlling the fuel flow rate using the feedback information
from the FPS.
Fuel Pump Control Module (FPCM) Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. emove the rear seat cushion. ( Refer to Body - "Rear Seat Assembly") 3...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Engine And Transmission Assembly Repair procedures
Removal 1. Remove the engine cover. 2. Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") 3. Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner") 4. Remove the engine room under cover...
Hyundai Sonata LF 2014-2019 Service Manual: Fuel Tank Repair procedures
Removal 1. Release the residual pressure in fuel line. (Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line") 2. Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly") 3. Remove the fuel pump service cover (A) in the trunk...
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