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Home >> Subaru >> 1987 >> DL 2D Coupe, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> SPFI CEC System >> Operation >> Oxygen Sensor

Oxygen Sensor

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The oxygen sensor is mounted on the center exhaust pipe. It is used to sense oxygen concentration in exhaust gas.

By sending this information to SPFI control unit, air/fuel ratio of supplied mixture can be determined easily. Voltage characteristics stabilize at temperatures of approximately 572-752°F (300-400°C).

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