Hyundai Sonata: 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. Remove the fuel pump ser ...

Fuel Pressure Sensor (FPS) Specifications

Specification Pressure [KPa (kgf/cm?, psi)]Output Voltage (V)50 (0.51, 7.3)0.3600 (6.12, 87.0)2.51100 (11.2, 159.5)4.5 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Adjustment 1. After loosening the trunk lid hinge (A) mounting bolt, adjust the trunk lid by moving it up or down, or right or left. 2. Adjust the trunk lid height by turning the trunk lid overslam bumpers (B). 3. After loosening the trunk lid striker (C) mounting bolts, adjust the tru ...

Hyundai Sonata LF 2014-2019 Service Manual: Rear Oil Seal Repair procedures
Removal 1. Remove the transaxle assembly. (Refer to transaxle - "Manual Transaxle assembly, Auto Transaxle assembly") 2. MT : Remove the flywheel. (Refet to Cylinder Block - "Flywheel") 3. AT : Remove the drive plate. (Refet to Cylinder Block - "Drive Plate") 4. Remove the rear oi ...