Kia Stinger CK: Engine Control System / Rail Pressure Sensor (RPS)

Kia Stinger (CK) 2018-2023 Service Manual / Engine Control / Fuel System / Engine Control System / Rail Pressure Sensor (RPS)

Specifications

Specification

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

Description and operation

Description

Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the instantaneous fuel pressure in the delivery pipe. The sensing element (semiconductor element) built into the sensor converts the pressure to voltage signal. By using this signal, the ECM controls the correct injection amount and timing and adjusts the fuel pressure with the fuel pressure regulator valve if the actual pressure calculated by the RPS output signal is different from the target pressure.

Schematic diagrams

Circuit Diagram

Harness Connector

Repair procedures

Inspection

1.	Connect the KDS 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.	Switch "OFF" the ignition and disconnect the negative (-) battery 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 to the specified torques.

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

1.	Install in the reverse order of removal.

Troubleshooting

Signal Waveform

Exhaust Gas Temperature Sensor (EGTS)

CVVT Oil Temperature Sensor (OTS)

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Securing a child restraint seat with “Tether Anchor” system

First secure the child restraint with the LATCH lower anchors or the seat belt. If the child restraint manufacturer recommends that the top tether strap be attached, attach and tighten the top tether strap to the top tether strap anchor. Child restraint hook holders are located on the back of the rear seatbacks. WARNING Take the following precautions when installing the tether strap: Read and follow all installation instructions provided with your child restraint system.

Kia Stinger (CK) 2018-2023 Service Manual: Rear Seat Back Cover

Components and components location Component Location 1. Rear back side seat assembly [LH] 2. Rear seat back assembly [LH] 3. Rear seat back assembly [RH] 4. Rear back side seat assembly [RH] Repair procedures Replacement Put on gloves to protect your hands.