AFR sensor

An air–fuel ratio meter monitors the air–fuel ratio of an internal combustion engine. Also called air–fuel ratio gauge, air–fuel meter, or air–fuel gauge. It reads the voltage output of an oxygen sensor, sometimes also called AFR sensor or lambda sensor, whether it be from a narrow band or wide band oxygen sensor. An air–fuel ratio meter monitors the air–fuel ratio of an internal combustion engine. Also called air–fuel ratio gauge, air–fuel meter, or air–fuel gauge. It reads the voltage output of an oxygen sensor, sometimes also called AFR sensor or lambda sensor, whether it be from a narrow band or wide band oxygen sensor.