Hyundai Ioniq: Fuel Delivery System / Fuel Pressure Sensor (FPS). Description and operation

Hyundai Ioniq (AE) 2017-2025 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

Removal1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.2.Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly")3...

Fuel Pressure Sensor (FPS). Specifications

Specification Pressure [KPa (kgf/cm², psi)] Output Voltage (V) 50 (0...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Camshaft Position Sensor (CMPS). Troubleshooting

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Hyundai Ioniq (AE) 2017-2025 Service Manual: Sub Battery Pack Assembly (Sub-BPA). Repair procedures

Check the target charging voltage when replacing with a new module Fault Code1.Turn OFF the ignition switch.2.Connect the diagnostic tool device to the self-diagnosis connector (DLC).3.Turn ON the ignition switch.4.Check the "Fault Code" in the diagnostic tool fault diagnosis...