- 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 vehicle's combustion system depends on a variety of sensors to preserve optimal conditions for performance. One of these mechanisms if the Oxygen 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 engine may have one or more sensors.
Your Nissan's O2 sensors help gauge the air-to-fuel ratio in your engine, working with the vehicle's computer to moderate the mixture depending on whether your engine is burning rich (too little oxygen) or too much oxygen (burning lean). An “off” air-to-fuel ratio can negatively impact the combustion system, leading to poorer fuel efficiency and increased emissions. That's why it's a good idea to have a high-quality Nissan Oxygen Sensor.
An Oxygen Sensor makes electricity, and the voltage it renders depends on the product of the exhaust system. In other words, the voltage generated by the Oxygen Sensor will vary if the fuel-air mixture is off! When a variance in voltage is detected, your Nissan's computer makes adjustments to the fuel mixtures to keep it running as designed.
Your vehicle's O2 sensor may need to be replaced due to regular wear and tear. In certain circumstances, 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, poor gas mileage, and an illuminated dashboard warning light.
Since the majority of modern cars rely on more than one Oxygen Sensor to regulate the operation of the combustion process, it can be hard for a DIY mechanic to diagnose and replace the right sensor on their own. In some cases, the process involves a specialized code scanner and inspecting the undercarriage by jacking up the vehicle. Accordingly, many Nissan owners opt for getting O2 sensor replacement services with their local Nissan technicians.
Are you noticing common signs of Oxygen Sensor failure? Get an OEM replacement sensor designed to fit your Nissan Altima, Nissan Sentra, or Nissan Versa. See the What This Fits tab for more fitment info.
AIR FUEL RATIO SENSOR
Fits Altima, Sentra, Versa