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Throttle Opener

WARNING: This page is about a different car, the 1993 Toyota T100. However, it is still accessible from the selected car via links, so may be relevant.
  1. Warm engine to normal operating temperature. Ensure idle speed is correct. See IDLE SPEED & MIXTURE in ADJUSTMENTS - V6 article.
  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. Replace throttle body if engine speed is not within specification. Reinstall vacuum hose on throttle opener. Start engine and ensure engine returns to correct idle speed.
THROTTLE OPENER SPECIFICATIONS

Application (1) Engine RPM
T100 900-1800
(1) With electric cooling fan turned off (if equipped).
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