Hyundai Ioniq (AE): Fuel Delivery System / Fuel Pressure Sensor (FPS). Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Control/Fuel System / Fuel Delivery System / Fuel Pressure Sensor (FPS). Repair procedures

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2.	Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly")

Remove the fuel pump service cover (A).

•	When reinstalling a protective cover for a fuel pump, remove the existing butyl tape and apply a new one.

•	Before assembling the protective cover, ensure that the temperature of the butyl is about 30°C using a hair dryer or a heat gun.

•	When installing the protective cover for the fuel pump, pay attention to the installation direction of the grommet and the protective cover.

–	The arrow (A) should be in the forward direction of the car.

–	Align the bulging part of the vehicle body (B) with the hole of the protective cover.

–	Align the bulging part of the grommet (C) with the bulging part of the protective cover.

4.	Disconnect the fuel pressure sensor connector (B).

5.	Remove the fuel pressure sensor fixing pin (A).

6.	Remov ethe fuel pressure sensor (B) from the fuel pump.

Installation

1.	Install in the reverse order of removal.

❮Fuel Pressure Sensor (FPS). Schematic diagrams

Circuit DiagramCircuit DiagramTerminal IllustrationTerminal Function Pin No Discription Connected to 1Fuel pressure sensor (FPS) Power supply (+5V)Fuel Pressure Sensor (FPS)2Fuel pressure sensor (FPS) signal inputFuel Pressure Sensor (FPS)3Fuel pressure sensor (FPS) ground (-)Fuel Pressure Sensor (FPS)

Delivery Pipe. Repair procedures❯

Removal • In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel.

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse.

Hyundai Ioniq (AE): Fuel Delivery System / Fuel Pressure Sensor (FPS). Repair procedures

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Intake Actuator. Specifications

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