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Throttle Body: Inspection

  1. INSPECT THROTTLE VALVE 

    Check that there is no clearance between the throttle stop screw and throttle lever when the closed throttle position.

    Fig 1: Inspecting Throttle Valve
    G02906195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT THROTTLE POSITION SENSOR 

    Using an ohmmeter, measure the resistance between each terminal.

    Fig 2: Inspecting Throttle Position Sensor
    G02906196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    THROTTLE POSITION SENSOR RESISTANCE CHECK

    Clearance between lever and stop screw Between terminals Resistance
    0 mm (0 in.) VTA - E2 0.2 - 5.7 kΩ
    Throttle valve fully open VTA - E2 2.0 - 10.2 kΩ
    Always VC - E2 2.5 - 5.9 kΩ