Celica GT Ltd Ed Convertible L4-2164cc 2.2L DOHC MFI (1997)
Throttle Opener: Testing and Inspection
Throttle Opener Inspection
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL
3. CHECK IDLE SPEED
Idle speed: 750 ± 50 rpm
4. CHECK AND ADJUST THROTTLE OPENER SETTING SPEED
(a) Disconnect the vacuum hose from the throttle opener, and plug the hose end.
(b) Maintain the engine speed at 2,500 rpm.
(c) Release the throttle valve.
(d) Check that the throttle opener is set.
Throttle opener setting speed: 1,300 - 1,500 rpm
(w/ Cooling tan OFF)
(e) Using a 3 mm hexagon wrench, loosen the lock nut and adjust the throttle opener setting speed by turning the throttle opener adjusting screw.
Tighten the lock nut.
(f) Reconnect the vacuum hose to the throttle opener.
5. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL