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Home >> Toyota >> 1994 >> Pickup Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Throttle Controls >> Throttle Opener >> 2.4L With A/T
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2.4L With A/T

  1. Warm engine to normal operating temperature. Ensure idle speed is correct. See IDLE SPEED & MIXTURE in articles listed below:
  2. Disconnect and plug vacuum hose at throttle opener, located on side of throttle body. Start engine. Maintain engine speed at 2500 RPM. Release throttle and note engine speed. Engine speed should be within specification. See THROTTLE OPENER SPECIFICATIONS  table.
  3. If engine speed is not within specification, rotate throttle opener adjusting screw until correct engine speed is obtained. See Fig 1. Reinstall vacuum hose on throttle opener.
Fig 1: Adjusting Throttle Opener (Similar)
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