Hyundai Creta: Injector / Variable Intake Solenoid (VIS) Valve

Hyundai Creta GS 2014-2019 Service Manual / Engine Control / Fuel System / Injector / Variable Intake Solenoid (VIS) Valve

Description and operation

Description

Variable Intake manifold Solenoid (VIS) valve is installed on the intake manifold. The VIS valve controls the vacuum modulator which activates a valve in the intake manifold. The ECM opens or closes this valve according to engine condition (Refer to below table).

Engine condition	VIS valve	Operation
Medium speed	Closed	Increasing engine performance in low engine speed by reducing intake interference among cylinders
Low / High speed	Open	Minimizing intake resistance by shortening intake manifold length and increasing area of air entrance

Specifications

Specification

Item	Specification
Coil resistance (Ω)	30.0 ~ 35.0 [20°C (68°F)]

Schematic diagrams

Circuit Diagram

(M/T)

(A/T)

Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the VIS valve connector.

Measure resistance between VIS valve terminals 1 and 2.

Specification : Refer to "Specification"

Removal

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

2.	Disconnect the variable intake solenoid valve connector (A).

3.	Disconnect the vacuum hoses (B) from the valve.

4.	Remove the mounting bolt (C), and then remove the valve from the surge tank.

Installation

•	Install the component with the specified torques.

•	Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

•	Be careful of foreign material not to flow into the valve.

Install in the reverse order of removal.

Variable intake solenoid valve bracket mounting bolt :

9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

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