Hyundai Sonata LF Quiz
Engine Control System/Fuel System

Fuel Pressure Sensor (FPS) Circuit Diagrams

In this manual: Engine Control System/Fuel System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Wiring Diagram

Fail-Safe Mode

Item Fail-safe
Output voltage (V) 12

If the fuel pressure sensor is faulty, the system enters fail-safe mode. In this mode, fuel pressure increases in accordance with the increase in current value, and the low-pressure fuel line pressure remains fixed despite the increase in fuel pressure.

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A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.