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Intake System: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT INTAKE AIR SURGE TANK 
    1. Inspect the diaphragm.
      1. Check that the lever moves when a vacuum of 26.6 kPa (200 mmHg) is applied with the Vacuum gage on.
      2. Check that the vacuum of 26.6 kPa (200 mmHg) is sustained for 1 minute in the above state.
    Fig 1: Inspecting Intake Air Surge Tank Diaphram
    G05108942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT NO. 1 VACUUM SWITCHING VALVE ASSEMBLY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        1 - 2 37 to 44 Ω at 20°C (68°F)

        If the result is not as specified, replace the vacuum switching valve No. 1.

        Fig 2: Inspecting No. 1 Vacuum Switching Valve Assembly
        G05109792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the vacuum switching valve No. 1 for ground.
      1. Using an ohmmeter, measure the resistance between each terminal and the body.

        Standard 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        1 - Body 10 kΩ or higher
        2 - Body 10 kΩ or higher

        If the result is not as specified, replace the vacuum switching valve No. 1.

        Fig 3: Checking Vacuum Switching Valve No. 1 For Ground
        G05109793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the operation.
      1. Check that air does not flow from port E to port F.

        If the operation is not as specified, replace the vacuum switching valve No. 1.

        Fig 4: Identifying Air Flow
        G05109794Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Apply battery voltage across the terminals.
      3. Check that air flows from port E to port F.

        If the operation is not as specified, replace the vacuum switching valve No. 1.

      Fig 5: Applying Battery Voltage Across Terminals
      G05109795Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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