Kia Sportage: Engine Control System / Rail Pressure Sensor (RPS) Repair procedures

Kia Sportage QL (2015-2026) Service Manual / Engine Control / Fuel System / Engine Control System / Rail Pressure Sensor (RPS) Repair procedures

Inspection

1.	Connect the KDS/GDS on the Data Link Connector (DLC).

Measure the output voltage and fuel pressure of the RPS at idle and various engine speed.

Pressure		Output Voltage (V) [Vref=5V]
bar	[MPa (kgf/cm², psi)]	Output Voltage (V) [Vref=5V]
0	0 (0, 0)	0.5
140	14 (142, 2031)	2.5
280	28 (286, 4061)	4.5

Removal

1.	Release the residual pressure in fuel line. (Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line")

2.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

3.	Remove the intake manifold. (Refer to Engine Mechanical System - “Intake Manifold”)

4.	Remove the delivery pipe foam (A).

5.	Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

Installation

• Install the component with the specified torques.

• Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

Install in the reverse order of removal.

Rail Pressure Sensor:

18.0 - 22.0 N·m (1.8 - 2.2 kgf·m, 13.3 - 16.2 lb·ft)

Rail Pressure Sensor (RPS) Schematic diagrams

Circuit Diagram Terminal Information Terminal Illustration Terminal Function No. Function Connected ...

Rail Pressure Sensor (RPS) Troubleshooting

Signal Waveform Service data review releated with fuel pressure sensor at idle and acceleration. (Inspect low pressure fuel line between fuel pump and high pressure pump firs ...

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