Kia Stinger CK Quiz
Engine Control System/Fuel System

Fuel Pressure Sensor (FPS)

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
9steps
~54min
2/5difficulty
Done 0 of 9

Specifications

Specification

Pressure [kPa (kgf/cm², psi)] Output Voltage (V) [Vref = 5 V]
50 (0,51, 7,3) 0,3
600 (6,12, 87,0) 2,5
1100 (11,2, 159,5) 4,5

Description and Operation

Description

Installed on top of the high pressure fuel pump, the Fuel Pressure Sensor (FPS) measures the pressure in the low pressure fuel line.

Based on the fuel pressure measured by the FPS and the fuel flow rate, the Fuel Pump Control Module (FPCM) determines whether to activate the low pressure fuel pump.

After the low pressure fuel pump is activated, the FPS continuously feeds the fuel pressure back to the FPCM, and the FPCM continues to control the fuel flow using feedback from the FPS.

Circuit Diagrams

Wiring Diagram

Terminal Information

Terminal Illustration

Terminal Function

No. Function Connected To
1 Fuel Pressure Sensor (FPS) Power Supply Fuel Pressure Sensor (FPS)
2 Fuel Pressure Sensor (FPS) Ground Fuel Pressure Sensor (FPS)
3 Fuel pressure sensor (FPS) signal input Fuel Pressure Sensor (FPS)

Repair Procedures

Inspection

  1. Connect the KDS to the Data Link Connector (DLC).

  2. Check the output voltage of the Fuel Pressure Sensor (FPS).

    Pressure [kPa (kgf/cm², psi)] Output Voltage (V) [Vref = 5 V]
    50 (0,51, 7,3) 0,3
    600 (6,12, 87,0) 2,5
    1100 (11,2, 159,5) 4,5

Removal

  1. Release the residual pressure in the fuel line.

    (See Fuel System - "Relieve Fuel Line Residual Pressure")

  2. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.

  3. Remove the rear seat cushion.

    (See Body - "Rear Seat Assembly")

  4. Remove the fuel pump service cover (A) after loosening the mounting screws.

  5. Disconnect the quick-connector (A) of the fuel feed line.

  6. Remove the fuel pressure sensor lock pin (B).

  7. Remove the fuel pressure sensor from the fuel pump.

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Stinger CK quiz: every answer comes with an explanation and a link to the manual page.