Operation CHARM
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TSX L4-2.4L
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Air Fuel Ratio (A/F) Sensor
Air Fuel Ratio (A/F) Sensor
Air Fuel Ratio (A/F) Sensor
The A/F sensor operates over a wide air/fuel range. The A/F sensor is installed upstream of the TWC, and sends signals to the ECM/PCM which varies the duration of fuel injection accordingly.