AIR-FUEL RATIO SENSOR 5 WIRE DIREC

The Denso 234-5719 is an Air/Fuel Ratio (AFR) sensor designed to provide precise output in proportion to the air/fuel ratio. This sensor helps the ECU achieve an exact AFR response for improved performance, reduced emissions, and increased gas mileage. It features a sophisticated sensing element, an aluminum-oxide trap layer to protect the platinum electrode from contaminants, and a double protection cover for optimal unit temperature and quicker response times. The stainless steel housing resists corrosion and contamination, while a porous PTFE filter prevents water and contaminants from entering the casing.