The Nissan Murano Oxygen Sensor is an exhaust component that monitors the amount of oxygen in the exhaust stream so that the engine computer will keep the air fuel mixture in a beneficial range and prevent unwanted emissions. Situated in the exhaust stream of the Murano, the Oxygen Sensor contains a zirconium dioxide element that is platinum-coated on its electrodes, at least according to the manufacturer. The element is secured in a ceramic core with a threaded steel shell. Openings expose the tip to exhaust gas. Separate passages admit outside air, which is applied for reference. When the element is heated to about 600°F, a voltage is produced that swings between roughly 0.1 and 0.9 volt. This indicates a lean or rich condition and helps make adjustments to the injector while in closed loop operation. Modern vehicles carry at least two sensors, one placed before and one placed after the catalytic converter. The upstream sensor controls the mixture, while the downstream one monitors the efficiency of the catalyst. Each Oxygen Sensor heats quickly through an element, enabling feedback to commence soon after ignition. A deteriorated Oxygen Sensor can slow response, raise emissions, trip the check engine light, and cut fuel mileage. A timely Nissan Murano Oxygen Sensor replacement is important for reliable Nissan operation and clean exhaust. Regular inspection of the Oxygen Sensor keeps the Nissan Murano performing well.
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