Oxygen Sensor 0258030072,04E906262AJ,04E906262AH for VW

lifespan of oxygen sensor
100，000 kilometers is a small hurdle for a vehicle. A car that is not well maintained will enter frequent failures outbreak period. The oxygen sensor is a part that almost no one has thought of replacing., but it is the one that must be paid attention to and replaced Irregular. The main materials of the oxygen sensor are platinum and zirconium oxide. Its service life is generally 8-10 kilometers. There are three types of oxygen sensor failure modes: CO poisoning, sulfur and phosphorus poisoning, lead poisoning, silicon poisoning, and manganese poisoning. The quality of gasoline and lubricating oil has a great impact on the life of the oxygen sensor.
Oxygen sensor function
The oxygen sensor measures whether there is an excess of oxygen in the exhaust gas after engine combustion and converts the oxygen content into a voltage signal to transmit to the vehicle''s ECU.  The ECU judges whether the air-fuel ratio is low or high based on the electromotive force difference from the oxygen sensor and accordingly controls the duration of fuel injection, enabling the engine to achieve closed-loop control targeting the excess air factor.  This ensures that the three-way catalytic converter achieves maximum conversion efficiency for the three pollutants in the exhaust gas: hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOX), thereby maximizing the conversion and purification of emissions pollutants.