Hyundai Sonata: Fuel Delivery System / Fuel Pressure Sensor (FPS) Schematic Diagrams

Circuit Diagram

Fail-Safe Mode
Item
Fail-Safe
Output Voltage (V)
12

   
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) Specifications
Specification Pressure [KPa (kgf/cm?, psi)]Output Voltage (V)50 (0.51, 7.3)0.3600 (6.12, 87.0)2.51100 (11.2, 159.5)4.5 ...

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. Tu ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Knock Sensor (KS) Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer to “Intake And Exhaust System” in EM group). 3. Disconnect the injector connector (A). 4. Remove the installation bolt (B), and then remove the sensor from ...

Hyundai Sonata LF 2014-2019 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 reduce with lower intensive light. 1. Auto light signal2. Auto ...

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