VSV For Acoustic Control Induction System (ACIS): Inspection

Remove the 4 nuts and engine cover.

1. Remove the 2 nuts, and disconnect the vacuum tank from the intake manifold.
   Fig 1: Disconnecting Vacuum Tank From Intake Manifold

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2. Disconnect VSV connector and vacuum hoses, and remove the vacuum control valve set.
   Fig 2: Disconnecting VSV Connector & Vacuum Hoses

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Remove the screw, vacuum hose and VSV.

Fig 3: Inspecting VSV For Open Circuit

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1. Inspect the VSV for open circuit.

   Using an ohmmeter, check that there is continuity between the terminals.

   1. Resistance: 38.5 - 44.5Ω at 20°C (68°F) 

   If there is no continuity, replace the VSV.

   Fig 4: Inspecting VSV For Ground Circuit

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2. Inspect the VSV for ground.

   Using an ohmmeter, check that there is no continuity between each terminal and the body.

   If there is continuity, replace the VSV.

3. Inspect the VSV operation.
   1. Check that air flows from port E to the filter.
      Fig 5: Inspecting VSV Operation (1 Of 2)

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   2. Apply battery positive voltage across the terminals.
   3. Check that air flows from port E to F.
Fig 6: Inspecting VSV Operation (2 Of 2)
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1. Install the VSV with the screw to the vacuum tank
2. Install the vacuum hose.

HINT:

Using a new O-ring.

Reinstall the engine cover with the 4 nuts.