B Series Truck 2WD L4-2184cc 2.2L 2200 2-bbl (1990)
Throttle Full Close Switch: Description and Operation
Fuel Injection
Idle Speed Control System
The Idle Switch is an "ON/OFF" switch that signals the ECU whether the throttle is completely closed or not. The ECU utilizes this input in its
calculations of:
Fuel injection quantity
ISC valve position
Purge control solenoid valve operation
Pressure regulator solenoid valve operation
Ignition timing control (igniter)
