Sidekick 2WD L4-1590cc 1.6L SOHC 0 TBI 8V (1992)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
Idle Speed Control Solenoid Valve Cross-Section
PURPOSE
This system controls the bypass air flow by means of ECM and ISC solenoid valve for the following three purposes.
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To keep the engine idle speed as specified at all times
The engine idle speed can vary due to following reasons.
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Load applied to engine (when electric load is applied, air-conditioner is turned ON, etc.)
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Variation in atmospheric pressure
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Change in engine itself with passage of time
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Other factors causing idle speed to change
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To improve starting performance of engine
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To compensate air/fuel mixture ratio when decelerating (Dash-pot effect)
LOCATION
On the throttle chamber.
ISC Solenoid Valve Control System
