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Home >> Honda >> 1996 >> Prelude VTEC >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 2.2L >> Computerized Engine Controls >> Input Devices >> Oxygen Sensor (O2S)
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Oxygen Sensor (O2S)

Oxygen sensor detects oxygen content of exhaust gases and sends signal to PCM, which varies air/fuel ratio to maintain a 14.7:1 ratio under most conditions. This ratio is most efficient for combustion and catalytic converter operation.

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