2 oxygen sensors, air-fuel ratio, for Peugeot 206 307 and Citroën Xsara 1.6i 16V

This set includes two new oxygen sensors, specifically designed for regulating the air-fuel mixture on electronically injected gasoline engines. They operate on the principle of the lambda sensor, measuring the residual oxygen content of the exhaust gases to optimize combustion and reduce pollutant emissions. Made of stainless steel and high-performance ceramic, they withstand temperatures up to 900°C and meet the reliability requirements of OBD-II systems. Installation is identical to the original (direct replacement), requiring no modifications or recalibration. The packaging contains only the two sensors—no tools, connectors, or manuals are included. As with any automotive component, we recommend installation by a professional or qualified person, in accordance with current French regulations (Decree of July 12, 2017, relating to vehicle emissions).