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 Owners Manual: Driver assist system
Rear View Camera The Rear View Camera will activate when the engine is running and the shift lever is in the R (Reverse) position. This is a supplemental system that shows behind the vehicle through the navigation display while backingup. WARNING The Rear View Camera is not a safety device. It o ...

Hyundai Sonata LF 2014-2019 Owners Manual: Auto Door Lock/Unlock Features
Impact sensing door unlock system All doors will be automatically unlocked when an impact causes the air bags to deploy. Speed sensing door lock system All doors will be automatically locked when vehicle speed exceeds 9 mph (15 km/h). All of the doors will be automatically unlocked after the engine ...