NOx Sensor Oxygen Sensor 1821366J00 Car Air Fuel Ratio Lambda O2 Oxygen Sensor 1821365J00 For Suzuki For Grand For Vitara For Escudo SQ420XD SQ420WD

1821366J00 Car Air Fuel Ratio Lambda O2 Oxygen Sensor 1821365J00 for Suzuki for Grand for Vitara for Escudo SQ420XD SQ420WD. The oxygen sensor compensates for air-fuel ratio errors caused by wear of other components of the electromechanical fuel injection. The function of the oxygen sensor is to monitor the mixture at all times to keep the engine in the best mixture combustion state. Replacing the air-fuel ratio oxygen sensor helps the engine run efficiently in air-gas ratio, improves fuel economy while reducing harmful emissions. Heat up quickly to help the engine get to work faster.