Variable Intake Solenoid (VIS)

Description and Operation

Description

Installed on the intake manifold (VIS valve 1) and the surge tank (VIS valve 2), the Variable Intake System (VIS) solenoid valves 1 and 2 are vacuum modulators that actuate the valves in the intake manifold and surge tank. These valves open or close depending on engine condition. (See table below.)

Specifications

Specification

Item	Specification
Coil Resistance (Ω)	30,0–35,0 [20 °C]

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

1. 1
   Turn the ignition off.
2. 2
   Disconnect the VIS valve connector.
3. 3
   Measure the resistance between terminals 1 and 2 of the VIS valve.
4. 4
   Make sure the resistance is within specification.

   Specification: 30.0–35.0 Ω [20 °C]

Removal

[VIS No. 1]

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Disconnect the variable intake solenoid connector (A).
3. 3
   Disconnect the vacuum hoses (B) from the valve.
4. 4
   Remove the mounting nut (C), then remove the valve from the surge tank. Variable Intake Solenoid Valve mounting nut: 7.8–11.8 N·m

   

5. 5
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
6. 6
   Disconnect the variable intake solenoid connector (A).
7. 7
   Disconnect the vacuum hoses (B) from the valve.
8. 8
   Remove the mounting nuts (C), then remove the valve from the surge tank. Variable Intake Solenoid Valve mounting nut: 7.8–11.8 N·m

   

[VIS No. 2]

Installation

Install the component to the specified torque. Be careful not to drop the component, as internal damage may occur. If dropped, inspect it before installation.

Do not allow foreign material to enter the valve.

1. Install in the reverse order of removal.