- 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 numerous sensors and gauges to maintain an adequate environment for performance. One of these mechanisms is the O2 sensor. At their inception, these sensors were invented to help limit emissions, and are now a standard offering in most current vehicles. Depending on your Nissan model and year, 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 mixture depending on whether your engine is running on too little oxygen (burning rich) or too much oxygen (burning lean). Having the incorrect ratio of air-to-fuel can negatively impact the combustion system, resulting in reduced fuel efficiency and an increase in emissions. That's one reason why it's so important to get a high-quality Nissan Oxygen Sensor (Rear).
An Oxygen Sensor (Rear) produces an electric charge, and the voltage it renders depends on what's coming out of the exhaust system. In other words, the voltage generated by the Oxygen Sensor (Rear) varies if the air-to-fuel ratio is off. When a variance in voltage is detected, your Nissan's computer adjusts the ratio to keep the combustion engine running as designed.
Your vehicle's O2 sensor may need to be replaced due to regular wear and tear. In some cases, you may need to replace it prematurely if it comes in contact with coolant or oil due to leaks or other contaminants. Some symptoms that may clue you into the need for a new Nissan sensor include: engine misfires, rough idling, decreased fuel efficiency, and a check engine light.
Since the majority of modern cars rely on not one but multiple Oxygen Sensor (Rear)s to support proper combustion, it can be difficult for vehicle owners to diagnose and repair this issue at home. Occasionally, the process requires a specialized code scanner and lifting the vehicle up on jacks to get a clear view of the undercarriage. So most Nissan owners opt for getting O2 sensor replacement services from their local Nissan experts.
Are you noticing common signs of Oxygen Sensor (Rear) failure? Get an authentic replacement Oxygen Sensor (Rear) for your Nissan Altima or Nissan Rogue for precise fitment and performance. Click on the What This Fits tab for more fitment info.
HEATED OXYGEN SENSOR
Fits Altima, Rogue