Delphi NOx Sensor - OE Engine Management ANS1111-12B1 - Fits: Vauxhall and Opel Astra

This Delphi NOx Sensor (ANS1111-12B1) is supplied in OE-matching quality and is suitable for selected Vauxhall and Opel Astra vehicles.

A nitrogen oxide (NOx) sensor is typically a high-temperature sensor built to detect high levels of nitrogen oxides within exhaust emissions of an automotive vehicle. Sensing the gases is only half of the process, the reason these devices are in place is to trigger re processing, or loop back systems, within the vehicle is high levels are found, commonly referred to as combustion optimization or regeneration of NOx traps.