Kia Cadenza YG: Engine Control System / Variable Intake Solenoid (VIS) Valve Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Engine Control System / Variable Intake Solenoid (VIS) Valve Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the VIS valve connector.
3.
Measure resistance between the VIS valve terminals 1 and 2.
4.
Check that the resistance is within the specification.
Specification: Refer to “Specification”
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the variable intake solenoid valve connector (A).
3.
Disconnect the vacuum hoses (B, C) from the valve.
4.
Remove the installation nut (D), and then remove the valve.
[Vave 1 (Intake manifold)]

[Vave 2 (Surge tank)]

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.
   
•
Be careful of foreign material not to flow into the valve.
1.
Install in the reverse order of removal.
Variable intake solenoid valve installation nut:
5.9 ~ 8.8 N.m (0.6 ~ 0.9 kgf.m, 4.3 ~ 6.5 lb-ft)

    Circuit Diagram

    Description Fuel Pressure Control Valve is installed on the high pressure fuel pump and controls fuel flow flowing into the injectors in accordance with the ECM signal calculated based on various engine condition.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Components and Components Location

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    Oil Specification 1. The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.

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