Oxygen Sensor 1615404217,50241156,290960588,EOS7503 for Ssangyong

Oxygen sensor classification
There are two types of oxygen sensors in practical applications: zirconium oxide oxygen sensors and titanium oxide oxygen sensors. Commonly used oxygen sensors are divided into Rivini lead, double lead and two lead types; single lead is zirconium oxide oxygen sensor; double lead is titanium oxide oxygen sensor; two lead is cooling zirconium oxide oxygen sensor. Oxygen sensors with four lead types alone cannot be used as substitutes.
Front oxygen sensor rear oxygen sensor
The oxygen sensor in front of the three-way catalytic converter is called the front oxygen, and the rear oxygen is mounted after the three-way catalytic converter. It is generally considering that the front oxygen has a greater effect than the rear oxygen, because the front oxygen is used to adjust the density of the mixed gas, and the rear oxygen is to monitor the working condition of the three-way catalytic converter. Oxidation reaction will occur when the three-way catalytic converter is working, such as CO+02=CO2, which means that the oxygen content monitored by the rear oxygen is less than that of the front oxygen.  Otherwise, the three-way fails or the purification capacity decreases, a few vehicles will light up the fault light, prompting the owner to check or replace the catalyst.