Hyundai Sonata: Fuel Delivery System / Fuel Pressure Sensor (FPS) Repair procedures

Connect the GDS on the Data Link Connector (DLC).
Check the output voltage of fuel pressure sensor (FPS).

Specification : Refer to “Specification”

Turn the ignition seitch OFF and disconnect the battery negative (-) cable.
Remove the rear seat cushion.
( Refer to Body - "Rear Seat Assembly" )
Remove the fuel pump sservice cover (A).

Disconnect the fuel pressure sensor connector (A).
Remove the fuel pressure sensor fixing pin (B).
Remove the fuel pressure sensor (C) from the fuel pump.

Install in the reverse order of removal.
Fuel Pressure Sensor (FPS) Schematic Diagrams
Circuit Diagram Fail-Safe Mode Item Fail-Safe Output Voltage (V) 12     If the fuel pressure sensor malfunctions, it enters fail safe mode. This means that the fuel p ...

Fuel Line Repair procedures
Removal     Whenever the high pressure fuel pump, fuel pipe, deliverypipe, or injector is removed immediately after shutting offthe engine, an injury may be caused by the rele ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Malfunction Indicator Lamp (MIL)
This warning light illuminates: Once you set the ignition switch or Engine Start/Stop button to the ON position. - It remains on until the engine is started. When there is a malfunction with the emission control system. In this case, have your vehicle inspected by an authorized HYUNDAI dealer ...

Hyundai Sonata LF 2014-2019 Owners Manual: Fuses
A vehicle’s electrical system is protected from electrical overload damage by fuses. This vehicle has 2 (or 3) fuse panels, one located in the driver's side panel bolster, the other in the engine compartment near the battery. If any of your vehicle's lights, accessories, or controls do not work ...

© 2018-2023