Hyundai Sonata LF: Fuel Delivery System / Fuel Pressure Sensor (FPS) Description and Operation

Hyundai Sonata LF 2014-2019 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

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. emove the rear seat cushion. ( Refer to Body - "Rear Seat Assembly") 3...

Fuel Pressure Sensor (FPS) Specifications

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Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Engine Control Module (ECM) Repair procedures

Removal When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. [In the case of installing used ECM] 1. Perform "Neutral mode" procedure with GDS. (Refer to "Immobilizer" in BE group) 2...

Hyundai Sonata LF 2014-2019 Service Manual: Input shaft speed sensor 2 Description and Operation