Oxygen sensor is a small device which measures the amount of oxygen present in the exhaust. The device is small like a pin and many people who own vehicles are not aware of the functioning of the device. If you have a faulty oxygen sensor, your vehicle may burn more gasoline and release harmful gases into the air. The main function of oxygen sensor is to find out the amount of oxygen required to efficiently burn the fuel and increase the efficiency of your car.

How an o2 sensor works? If the exhaust mixture is rich in components, the voltage depicted by the indicator is high whereas if the fuel is properly used, the mixture of gases released is lean in components and the voltage generated is low. If you are aware of the working of oxygen sensors in your vehicles, you can find out if your vehicle is environmental friendly or not and if you oxygen sensor works improperly, you can buy a new o2 sensor for your car. You can get o2 sensor at wholesale o2 sensor shops and some manufacturers sell online wholesale oxygen sensor at a discounted price.