Hyundai Azera: Variable Intake Solenoid (VIS) Valve Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 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.

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.

Installation is reverse 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)

Variable Intake Solenoid (VIS) Valve Schematic Diagrams

Circuit Diagram ...

Fuel Pressure Control Valve (FPCV) Description and Operation

Description Fuel Pressure Regulator 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 var ...

Hyundai Azera: Variable Intake Solenoid (VIS) Valve Repair procedures

Variable Intake Solenoid (VIS) Valve Schematic Diagrams

Fuel Pressure Control Valve (FPCV) Description and Operation

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