Idle Speed W/Computer Control

1989 All DOHC FI: Disconnect and ground female end of ignition timing connector. Ground terminal 10 of self-diagnostic connector (under dash). Set idle speed. Reinstate system, turn AC on and verify the speed-up is at specified value.

1989 All SOHC FI; 1984-88 1597cc, 1795cc Turbo, 2350cc, 2555cc Turbo, 2972cc: Verify that TPS voltage is proper value. Turn ignition on for 15 seconds and turn off. Disconnect ISC servo and start engine. Set idle speed to specified value.


1985-86 Tredia, Cordia w/AT: Turn ignition on for 18 seconds and turn off. Disconnect ISC actuator and oxygen sensor, start engine. Set idle to specified value. Verify that base idle screw is 2/3 of a turn away from the setting speed. Turn AC on and verify that speed-up speed is at specified value.