Hyundai Sonata LF Quiz
Engine Control System/Fuel System

Fuel Pump Control Module (FPCM) Repair Procedures

In this manual: Engine Control System/Fuel System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
10steps
~60min
3/5difficulty
Done 0 of 10

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly")
  3. Remove the fuel pump service cover (A).
  4. Disconnect the connector (A) of the fuel pump control module.
  5. Remove the fuel pressure control module (A) by loosening the screws.

Installation

  1. Install in the reverse order of removal.

Inspection

  1. Connect GDS to the vehicle's Data Link Connector (DLC).
  2. Check all DTCs and, if any, repair according to the DTC troubleshooting procedures.
  3. Check the supply voltage to the Fuel Pressure Sensor (FPS).

    Specification: 5 V

  4. Check the voltage supplied to the Fuel Pressure Sensor (FPS) at idle.

    Specification: 1.9 ~ 3.2 V

  5. Check the fuel pressure in the low-pressure fuel line. (Refer to Fuel System - "Fuel Pressure Check")
    Items Specification
    Start Max. 600 kPa (Max. 6.1 kgf/cm², Max. 87.0 psi)
    Action 350 ~ 500 kPa (3.5 ~ 5.1 kgf/cm², 50.7 ~ 72.5 psi)

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