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Home >> Isuzu >> 1987 >> Trooper II LS, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor 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 or M/C solenoid by the ECM. This signal is sent to the solenoid when fuel enrichment is necessary for cold engine starts or sudden acceleration.