Celica ST Ltd Ed Liftback L4-1762cc 1.8L DOHC MFI (1997)
Throttle Opener: Testing and Inspection
THROTTLE OPENER INSPECTION
1. INSPECT AND ADJUST THROTTLE OPENER
A. Warm up engine
Allow the engine to warm up to normal operating temperature.
B. Check idle speed
Idle speed: 650 - 750 rpm
C. Check and adjust throttle opener setting speed
Reference
(a) Disconnect the vacuum hose from the throttle opener, and plug the hose end.
(b) Maintain the engine 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 fan OFF)
(e) Adjust the throttle opener setting speed by turning the throttle opener adjusting screw.
(f) Reconnect the vacuum hose to the throttle opener.
D. Disconnect TOYOTA hand-held tester or OBD II scan tool
