High quality parts
Part no.: 5WK9 6680A
Voltage: 12V
Product describe: The NOX sensor consists of a ceramic sensor element and an electronic control unit And used for catalyst management in vehicles with gasoline or diesel engines.
1. It is the information to measure whether there is excess oxygen in the exhaust gas after the engine is combusted, that is, the oxygen content, and convert the oxygen content into a voltage signal and transmit it to the engine computer. Enables the engine to achieve closed-loop control targeting excess air factor;
2. Ensure that the three-way catalytic converter has the maximum conversion efficiency for the three pollutants of hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOX) in the exhaust gas. Maximum emission pollutants transformation and purification.
In many applications with exhaust-gas treatment systems, one NOx sensor is used upstream of the exhaust-gas treatment system (upstream) and a second sensor is used downstream of the exhaust-gas treatment system. The upstream sensor is used for the aforementioned feedback loop. Meanwhile, the downstream sensor is used mainly to confirm that the legislated emissions limits have not been exceeded.