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Home >> Saab >> 1988 >> 900 Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - LH-JETRONIC >> Operation >> Idle Control
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Idle Control

The idle control system is comprised of a valve, solenoid and an electric motor. See Figure . This system is used to provide a more stable idle speed during warm and cold engine operation.

This system determines the volume of air that will enter engine intake system. Airflow volume is determined by size of opening in valve. When airflow drops below a specified volume, the ECU signals the AIC system to modify size of valve opening.