- Monitors the air-to-fuel ratio within your engine
- Can become worn over time or damaged by a fluid leak
- Replacement by an Nissan professional is recommended
Your Nissan's combustion engine relies on a variety of sensors to preserve optimal conditions for performance. One of these technologies is the O2 sensor. At their inception, they were introduced to help control and curb emissions, and are now a standard offering in most current vehicles. Depending on which Nissan model and year you drive, your combustion engine may rely on one or more of these.
Your Nissan's O2 sensors help gauge the air-to-fuel ratio in your engine, helping your engine's internal computer regulate the ratio depending on whether your engine is burning rich (too little oxygen) or burning lean (too much oxygen). An “off” air-to-fuel ratio may negatively affect the combustion engine, leading to reduced fuel efficiency and more emissions. That's why it's smart to get a high-quality Nissan Oxygen Sensor (Rear).
An Oxygen Sensor (Rear) makes electricity, and the amount of voltage it results in depends on the product of the exhaust system. In other words, the electricity generated by your Nissan O2 sensor varies if the air-to-fuel ratio is off. When the system notes a variance in voltage, your vehicle's onboard computer makes adjustments to the fuel mixtures to keep your Nissan running as intended.
Your vehicle's O2 sensor may need to be replaced after a period of time or usage. In certain circumstances, your car may need a premature O2 sensor replacement if it comes in contact with coolant or oil due to leaks or other forms of contamination. Some symptoms that may clue you into the need for a new Oxygen Sensor (Rear) are: cylinder misfires, noisy idling, decreased gas mileage, and an illuminated check engine light.
Since the majority of modern cars rely on more than one Oxygen Sensor (Rear) to moderate the combustion process, it can be difficult for vehicle owners to diagnose and repair this issue at home. Occasionally, the repair involves at a specialized scanner and jacking the vehicle up to get to the undercarriage. So most Nissan owners choose to get their Oxygen Sensor (Rear) replacement services from their local Nissan experts.
Is one or more of your Nissan Oxygen Sensor (Rear)s misfiring? Order an authentic Oxygen Sensor (Rear) for your Nissan Armada, Nissan Pathfinder, Nissan Sentra, or Nissan Titan for precise fitment and performance. Click on the What This Fits tab for more information.
HEATED OXYGEN SENSOR
Fits Armada, Pathfinder, Sentra, Titan