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    AFR,-Wide-Range-or-Air-Fuel-Ratio-Sensor

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    Mandy Concepcion

    by Mandy Concepcion

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    Describes the operation of the AFR or Wide-Range air fuel ration sensor. The wide range or air fuel ratio sensor is a replacement technology for the older O2 sensor. This sensor has a much wider sensing ability and allows the ECM to control the air-fuel mixture on a wider range of ration, hence its name.