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Home >> Isuzu >> 1982 >> I-Mark Base, 2D Coupe, 1.8L Eng VIN P, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Closed Loop Emission System >> Operation >> Electronic Control Module >> Enrichment Mode
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Enrichment Mode

In this mode a fixed, pre-programmed duty cycle electrical signal is sent to the vacuum control solenoid by the ECM. This signal is sent to the solenoid when fuel enrichment is necessary for cold engine starts or sudden acceleration.