Galant L4-1997cc 2.0L SOHC 16 Valve (1993)
Oxygen Sensor Voltage vs Fuel/Air Ratio
The ECU's instant mixture adjustment in response to the Voltage output of the oxygen sensor causes the output Voltage from the Oxygen Sensor to
fluctuate rapidly between 0.1 and 0.9 Volts DC and will be observed as an average of about 0.6 Volts DC when measured with a Voltmeter.
Oxygen Sensor
Construction
The oxygen sensor is made of a ceramic material called zirconium dioxide. The inner and outer surfaces of the ceramic material are coated with a
very thin layer of platinum. The outer surface is exposed to exhaust gasses, while the inner surface is exposed to outside air.
