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Home >> Mitsubishi >> 1989 >> Precis RS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Theory/Operation - CARBURETED >> Computerized Engine Controls >> Theory/Operation - CARBURETED >> Closed Loop Control (Feedback Control)

Closed Loop Control (Feedback Control)

After engine warm-up, air/fuel ratio is determined by the oxygen sensor signal to the ECU. The ECU controls air/fuel ratio through the Feedback Solenoid Valve (FBSV) and Slow-Cut Solenoid Valve (SCSV).