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Home >> Chevrolet >> 2004 >> Tracker 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.0L (Introduction) >> Description and Operation >> Fuel System Description >> Engine Warm-Up Enrichment
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Engine Warm-Up Enrichment

When the engine is cold, additional fuel is added in order to ensure good driveability. The level of enrichment of the air/fuel mixture is gradually decreased until the ECT sensor reaches a specified value.