Volkswagen Jetta Oxygen Sensors & Components

An oxygen sensor is essential to the efficiency of your engine. Its purpose is to provide data required by the engine management system to maintain the right proportion of air and gasoline in the mixture that is used for combustion. The mixture that contains more fuel than it is needed for efficient combustion is called a rich mixture. An exceeding amount of air leads to a lean mixture. Both conditions can cause poor engine performance, increased emissions, and low fuel efficiency. The oxygen sensor identifies rich and lean mixtures and produces a corresponding signal. The engine’s computer receives the signal, determines the type of the mixture, and makes respective adjustments in the amount of fuel coming to the combustion chambers.

The amount of oxygen required by your Volkswagen Jetta’s engine may vary according to different factors, including barometric pressure, temperature, and engine load. Therefore, the proportions of air and fuel in the mixture have to be constantly adjusted. That’s why the properly running oxygen sensor is so important. If it fails, your automobile’s performance will go down and fuel consumption will increase. Do not overlook the first symptoms of a problem, but rather visit our online store and choose a new Volkswagen Jetta oxygen sensor to replace a faulty part.