Unleash Engine Potential Replace O2 Sensors and Enhance Vehicle Performance

Some opinions are that they should be changed every 50K miles or so, others say that as long as they're cycling as they should, leave them alone ... The absolute simplest way to begin troubleshooting is resetting the computer and driving around a few hours. LR4 - Replacing Front O2 Sensors on LR4 for both banks - I am working on replacing my O2 sensors and I was able to get the rear sensors but ... In this video, we take you through a step-by-step tutorial on the intricate process of changing an oxygen sensor. The engine computer is only reading from the sensor with the engine running so generally speaking you do not need to disconnect the battery when replacing it. Once you've determined which sensor is defective, you can remove it with this special oxygen sensor socket wrench, which is available at AutoZone. Because the ... $300 is about right for a O2 sensor change on most cars. It's certainly cheaper if you do it yourself but most newer cars have a rear and front O2 sensor. The exhaust sound was very different. There was a lot more droning that could be heard from the cabin. The exhaust note was rougher and louder. The primary o2 sensor is used to monitor air/fuel ratio and the ECU adjust to have the engine runs optimally. The secondary o2 sensor is there to just monitor ... If you choose to have a professional replace your car's oxygen sensor, you can usually expect to pay somewhere between $200 and $500 to get the ...