Hyundai Sonata LF: Engine Control / Fuel System / Engine Control System

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System

Troubleshooting

Basic Troubleshooting Basic Troubleshooting Guide Customer Problem Analysis Sheet Basic Inspection Procedure Measuring Condition of Electronic Parts' Resistance The measured resistance at high temperature after vehicle running may be high or low...

Description and Operation

OBD-II review 1. Overview The California Air Resources Board (CARB) began regulation of On Board Diagnostics (OBD) for vehicles sold in California beginning with the 1988 model year...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location


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Hyundai Sonata LF 2014-2019 Service Manual: 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...

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