The DELPHI NOx sensor, part code ANS1022-12B1, is a critical component for modern diesel engines equipped with urea injection (AdBlue) systems. It accurately measures the level of nitrogen oxides in the exhaust gases, providing essential data to the engine control unit (ECU). By monitoring NOx levels, the ECU can optimize the urea injection process, ensuring that the selective catalytic reduction (SCR) system operates efficiently. This leads to reduced harmful emissions and helps vehicles comply with stringent environmental regulations. This sensor is engineered for durability and reliable performance in demanding automotive environments. Its precise measurements contribute to optimal engine performance and fuel efficiency while minimizing environmental impact.