Hyundai Equus: Fuel Pressure Sensor (FPS) Troubleshooting - Fuel Delivery System - Engine Control/Fuel System - Hyundai Equus VI 2009-2022 Service ManualHyundai Equus: Fuel Pressure Sensor (FPS) Troubleshooting

Fail-Safe Mode
Duty (%)

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.
    Fuel Pressure Sensor (FPS) Schematic Diagrams
    Circuit Diagram ...

    Fuel Pressure Sensor (FPS) Repair procedures
    Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Check the output voltage of fuel pressure sensor (FPS). Specification: Refer to Specification Removal 1. Turn i ...

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