Hyundai Genesis (DH): Fuel Delivery System / Fuel Pressure Sensor (FPS) Troubleshooting

Fail-Safe Mode
Item
Fail-Safe
Duty (%)
85

   
If the fuel pressure sensor malfunctions, it enters fail safe mode. This means that the fuel pressure rises to match the increasing value of the current level and the pressure in the low pressure fuel line remains static despite the rising fuel pressure.

    Circuit Diagram

    Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Check the output voltage of fuel pressure sensor (FPS). Specification: Refer to

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: PGS Unit (Back & Blinde Unit) Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing (A). (Refer to Body - "Glove Box") 3. Remove the PGS unit (A) after loosening the nuts. Installation 1. Install the PGS unit. 2. Install the glove box housing.

    Hyundai Genesis (DH) 2013-2016 Service Manual: A/C Pressure Transducer Description and Operation

    Description The A/C Pressure Transducer (APT) converts the pressure value of high-pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it at high speed or low speed.

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