Nissan Quest Oxygen Sensor With Lambda Air-Fuel Ratio

Nissan Quest Oxygen Sensor With Lambda Air-Fuel Ratio from WEIDA AUTO PARTS is a precise, ready-to-install replacement designed to restore accurate exhaust gas monitoring on Nissan Quest vehicles. Built as a direct-fit solution for models requiring OEM 226A03NT0A, this 4‑wire heated oxygen sensor (lambda sensor) helps maintain the correct air–fuel ratio, supporting smoother engine performance, improved fuel economy, and reduced emissions. Originating in Mainland China, this sensor combines reliable construction with practical value for a confident repair or maintenance project. This sensor monitors the exhaust's oxygen content and feeds the data to the engine control unit, enabling real-time adjustments to the combustion process. With a heated design, it reaches operating temperature quickly, delivering stable readings right after startup. Replacing a failing O2 sensor can resolve symptoms like rough idle, hesitation on acceleration, or a drop in fuel efficiency, helping your Nissan Quest run cleaner and more efficiently. Benefits & Tips - Restore accurate air–fuel ratio control for smoother idling and better throttle response in Nissan Quest. - Reduce exhaust emissions and improve fuel economy by ensuring the engine trims fuel based on real-time sensor data. - Use as a reliable direct-fit replacement when your OEM 226A03NT0A sensor shows wear, corrosion, or sluggish response. Product specifications - Brand: WEIDA Auto Parts - Vehicle compatibility: Nissan Quest - OEM No.: 226A03NT0A - Additional OEM numbers (variants): 226931-MR0A, 226A0-3NT0A, 226A0-1HC0A - Sensor type: Oxygen sensor (Lambda/air-fuel ratio monitoring) - Wiring: 4-wire heated design - Origin: Mainland China Package includes: - 1 x Nissan Quest Oxygen Sensor (OEM 226A03NT0A) Warnings/Reminders - Confirm OEM number 226A03NT0A matches your vehicle’s requirements before installation. - This is a direct-fit replacement for Nissan Quest models that use a 4-wire heated oxygen sensor. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Providing quality and trusted service since 2002 at intercyprus.com.