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Home >> Subaru >> 1988 >> GL 2D Hatchback, 1.8 5 >> Repair and Diagnosis >> Engine Performance >> System >> SPFI CEC System >> Operation >> Air/Fuel Ratio Learning Control System
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Air/Fuel Ratio Learning Control System

By learning feedback control signals sent by oxygen sensor, the SPFI system is able to automatically make corrections. This system stabilizes driveability by maintaining original performance values.

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