Hatchback 4WD F4-1781cc 1.8L (1983)
Oxygen Sensor: Description and Operation
The oxygen sensor generates a voltage according to the ratio of oxygen in the ambiant air compared to the exhaust gases. The voltage changes in relation
to the air/fuel mixture. When there is alot of oxygen in the exhaust (lean mixture),
the oxygen sensor will not generate much voltage (near zero volts). When there is not much oxygen in the exhaust, (rich mixture) the oxygen sensor will
generate up to one volt.
The oxygen sensor is installed in the catalytic convertor and is connected to a tube with a shield cap.
