B Series Truck 2WD L4-2184cc 2.2L 2200 2-bbl (1990)
Throttle Full Close Switch: Description and Operation
Carburetor
Idle Switch
Located on the carburetor, the "ON/OFF" idle switch provides a throttle position signal to the ECU. It is "OFF" at idle (throttle closed) and "ON" above
1000-1200 rpm.