VOLVO NOx Sensor

A Volvo NOx sensor is a type of sensor that measures the amount of nitrogen oxide (NOx) in the exhaust gas of a Volvo vehicle. NOx is a harmful pollutant that can contribute to smog and acid rain. The NOx sensor helps to ensure that the vehicle’s emissions are within legal limits.

The NOx sensor is located in the exhaust system, typically near the catalytic converter. It consists of a heating element and a sensor element. The heating element heats the sensor element to a specific temperature, which allows it to measure the amount of NOx in the exhaust gas.

The NOx sensor sends a signal to the vehicle’s computer, which adjusts the fuel injection and ignition timing to reduce NOx emissions. If the NOx sensor fails, the vehicle’s computer may not be able to properly control emissions, which could result in a check engine light and other problems.