Repair Procedures: Inspection

Connect the GDS to the vehicle's data link connector (DLC).
Check any DTCs and if exist, repair according to the DTC INDEX .
Check the power supply voltage provided to the fuel pressure sensor (FPS). [Terminal 4 and 5]
Specification : 5V

Fig 1: Locating Fuel Pressure Sensor Connector
Courtesy of HYUNDAI MOTOR AMERICA
Check the voltage provided to the fuel pressure sensor (FPS) at idle.
Specification : 1.9 - 3.2V

Fig 2: Locating Fuel Pressure Sensor Connector
Courtesy of HYUNDAI MOTOR AMERICA

Check the fuel pressure in the low fuel line. [Terminal 2 and 5]

(Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM) Fuel Delivery System) [Terminal 2 and 5]

Items	Specification
start	Max. 600 KPa (Max. 6.1 kgf/cm² , Max. 87.0 psi)
in operation	350 - 500 KPa (3.5 - 5.1 kgf/cm2, 50.7 - 72.5 psi)