Air/Fuel Ratio Learning Control System
WARNING: This page is about a different car, the 1988 Subaru RX, 1988 Subaru GL-10, 1988 Subaru GL, and 1988 Subaru DL. However, it is still accessible from the selected car via links, so may be relevant.
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.