Throttle Opener Adjustment: Tacoma
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine and warm engine to normal operating temperature. Ensure idle speed is within specification. See IDLE SPEED & MIXTURE .
- With engine idling, disconnect and plug vacuum hose at throttle opener. See Fig 1. Note engine speed with vacuum hose disconnected from throttle opener. Engine speed should be 1200-1500 RPM.
- If engine speed is not within specification, throttle opener is nonadjustable and throttle body must be replaced. Shut engine off. Reinstall vacuum hose on throttle opener. Start engine and ensure engine returns to proper idle speed. If necessary to replace throttle body, see THROTTLE BODY under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article.