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

Hyundai Genesis (DH) 2013-2016 Service Manual / Engine Control / Fuel System / 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: Components and Components Location

    S

    Hyundai Genesis (DH) 2013-2016 Service Manual: Photo Sensor Repair procedures

    Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light.

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