- 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 numerous sensors and gauges to maintain the environment required for proper performance. One of these technologies if the Oxygen Sensor (Rear). At their inception, these sensors were invented to help limit emissions, and are now a standard offering in most current vehicles. Depending on which Nissan model and year you drive, you may have one or more of these in your engine.
The Oxygen Sensor (Rear)s help gauge your engine's air-to-fuel balance, working with the internal computer to regulate said ratio depending on whether your engine is burning rich (too little oxygen) or too much oxygen (burning lean). Having the wrong air-fuel mixture can negatively impact the combustion system, resulting in reduced fuel efficiency and an increase in emissions. That's why it's a good idea to have a genuine Nissan Oxygen Sensor (Rear).
An Oxygen Sensor (Rear) produces an electric charge, and the amount of voltage it creates depends on what the exhaust system is producing. In other words, the voltage generated by the Oxygen Sensor (Rear) will vary if the fuel-air mixture is off! When a variance in voltage is detected, your vehicle's onboard computer makes adjustments to the fuel mixtures to keep the combustion engine running as designed.
Your Oxygen Sensor (Rear) may need to be replaced after a period of time or usage. In some cases, you may need to replace it prematurely if it's damaged due to leaks or other forms of contamination. Some telltale signs that indicate the need for a new Nissan sensor include: engine misfires, loud idling, decreased gas mileage, and an illuminated dashboard warning light.
Since most modern vehicles rely on not one but multiple Oxygen Sensor (Rear)s to moderate the combustion process, it can be hard for an at-home mechanic to pinpoint which one requires replacement! Occasionally, the process involves a specialized code scanner and jacking the vehicle up to get to the undercarriage. That's why most Nissan owners opt for getting O2 sensor replacement services at their local Nissan service center.
Are you noticing common signs of Oxygen Sensor (Rear) failure? Order an authentic Oxygen Sensor (Rear) for your Nissan Frontier, Nissan NV1500, Nissan NV2500, Nissan NV3500, Nissan Pathfinder, or Nissan Xterra. See the What This Fits tab for more information.
HEATED OXYGEN SENSOR
Fits Frontier, NV1500, NV2500, NV3500, Pathfinder, Xterra