- Monitors the air-to-fuel ratio within your engine
- Can become worn over time or damaged by a fluid leak
- Replacement by an INFINITI professional is recommended
Your vehicle's combustion system depends on various sensors to maintain the environment required for proper performance. One of these mechanisms is the O2 or Oxygen Sensor. Originally, Oxygen Sensors were rolled out to reduce emissions, and are now standard in most modern vehicles. Depending on your INFINITI model and year, your engine may have one or more sensors.
The Oxygen Sensors help gauge your engine's air-to-fuel balance, working with the internal computer to regulate the mixture depending on whether your engine is burning rich (too little oxygen) or too much oxygen (burning lean). Having the incorrect ratio of air-to-fuel can negatively impact the combustion system, leading to poorer fuel efficiency and an increase in emissions. That's why it's a good idea to have a new INFINITI O2 sensor.
An Oxygen Sensor makes electricity, and the amount of voltage it creates depends on what the exhaust system is producing. Simply put, the electricity generated by your INFINITI Oxygen Sensor will vary if the fuel-air mixture is off! When a variance in voltage is detected, your INFINITI's computer makes adjustments to the fuel mixtures to keep the combustion engine running as designed.
Your INFINITI Oxygen Sensor may need to be replaced after a period of time or usage. In certain circumstances, you may need to replace it prematurely if it's damaged due to leaks or other forms of contamination. Some potential signs that it's time for a replacement O2 sensor include: cylinder misfires, rough idling, decreased gas mileage, and a check engine light.
Since most modern vehicles rely on not one but multiple Oxygen Sensors to regulate the operation of the combustion process, it can be challenging 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 many INFINITI owners choose to get their Oxygen Sensor replacement services with their local INFINITI technicians.
Have you noticed any signs of O2 sensor malfunctions? Get an authentic replacement Oxygen Sensor for your INFINITI QX56 2011-2015 or INFINITI QX80 2011-2015 for precise fitment and performance. Check the What This Fits tab for more details.
HEATED OXYGEN SENSOR
Fits QX56, QX80