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

Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the RPS at idle and various engine speed.
Condition
Output Voltage (V)
Idle
 Approx. 1.2
1,500 rpm
2.0 ~ 2.2
6,300 rpm
 Approx. 2.8

Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line").
   
When removing the fuel pump fuse, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure in Fuel Line” work.
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - “Intake Manifold”)
4.
Disconnect the rail pressure sensor connector (A), and then remove the sensor 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.
1.
Install in the reverse order of removal.

Rail Pressure Sensor Installation:
29.4 ~ 34.3 N.m (3.0 ~ 3.5 kgf.m, 21.7 ~ 25.3 lb-ft)

    Circuit Diagram

    Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Specifications

    S

    Kia Cadenza YG 2016-2021 Service Manual: Antenna Coil Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad") 3. Disconnect the 6P connector (B) of the coil antenna and then remove the coil antenna (A) after loosening the screw.

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