Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » Engine control system
Air Fuel Ratio Sensor 1

The air fuel ratio (A/F) sensor 1 is a planar onecell limit current sensor.

The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element.

The sensor is capable of precise measurement = 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide range.

The exhaust gas components diffuse through the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative oxygen density in lean. Also this current relative hydrocarbon density in rich.

Air Fuel Ratio Sensor 1

Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this electrode layer of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of about 800C (1,472F).

Air Fuel Ratio Sensor 1

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    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / Engine control system / Air Fuel Ratio Sensor 1

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