900 L4-2118cc 2.1L DOHC (1992)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
IAC valve, LH 2.4.2 (M1991-)
As distinct from earlier versions, the AC valve now has two windings which correspond to each other in the event of a voltage drop, such as occurs
when the AC system is engaged. Whenever necessary, a spring in the valve sets it in Limp- Home mode with a small opening which gives an engine
speed of about 850 rpm when there is no load on the valve.