About Lexus GS400 Oxygen Sensor
The Lexus GS400 oxygen sensor is a measuring probe for determining the amount of oxygen in the exhaust; actually they are mounted inside of your exhaust pipe. Quality and conditioned Lexus oxygen sensor will prevent that stinky smell of rotten egg and emergence of black smoke from the exhaust, which indicates lesser amount of hydrocarbons, nitrogen oxide and carbon monoxide. In operation, the Lexus GS400 oxygen sensor which is positioned in the exhaust pipe accurately checks the red-hot exhaust hundreds of times per minute. It is important that you have an oxygen sensor that is functioning properly.