O2 Oxygen Sensor Quick summary Measures oxygen content in exhaust gases and converts it to an electrical signal the engine control unit can use to adjust air fuel mixture. Designed as a direct replacement sensor for compatible vehicles with standard oxygen sensor ports and connectors. Durable construction and fast response help maintain stable engine performance and fuel control. Key benefits Restores accurate air fuel feedback to the engine control unit, helping the vehicle run closer to intended fuel maps. Fast response and stable output reduce hesitation and irregular idling caused by a failing oxygen sensor. Compact, vehicleready design simplifies replacement and reduces installation time when matched to your vehicle fit. What it does and how it solves problems Function: Senses oxygen levels in exhaust and produces a voltage signal proportional to exhaust oxygen concentration. The engine control unit uses this signal to adjust fuel delivery for efficient combustion. Problem solved: A failing oxygen sensor can cause poor engine performance, increased fuel consumption, and diagnostic trouble codes. Replacing the sensor restores proper sensor feedback to the engine control system. Standout attributes: Robust sensor element housed in corrosion resistant metal, protective shroud for stable readings, and designed for reliable operation in exhaust conditions. Key attributes Function: Exhaust oxygen sensing for closed loop fuel control. Compatibility: Intended for use in vehicles equipped with standard threaded oxygen sensor mounting ports and matching electrical connectors. Confirm vehicle fitment before . Size and fit: Compact sensor body sized to fit standard sensor ports on compatible gasoline engines. Thread pitch and connector type vary by application, so verify fit. Material: Corrosion resistant metal housing with a ceramic sensing element. Performance: Rapid response, stable voltage output, and long service life under typical exhaust conditions. Typical use scenarios a faulty upstream oxygen sensor to restore smooth idling and eliminate engine diagnostic codes. Install as part of routine maintenance when a vehicle exhibits uneven fuel trimming or reduced throttle response. Use in diagnosis and when performing exhaust system service or related component replacement. Installation notes Verify correct sensor type, thread size, and connector for your specific vehicle before installation. Inspect wiring harness and connector for damage and secure proper electrical connection during installation. After replacement, follow vehicle manufacturer guidance for any required ECU relearn or adaptation procedures.