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Inspect Intake Air Control Valve Operation

  1. Start the engine.
  2. While the engine is idling, check that the actuator rod moves. See Fig 1.
    Fig 1: Checking Actuator Rod Movement
    G04962768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Disconnect the VSV connector, and check that the actuator rod returns. See Fig 2. If operation is not as specified, inspect the intake air control valve, VSV and ECM.
    4. Fig 2: Checking Actuator Rod Return Movement
    G04962769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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