Notifications You must be signed in to change notification settings The oxygen (O2) sensor in your car's engine system is a vital component responsible for measuring the oxygen level in exhaust gases.

Oxygen sensors play a critical role in ensuring the efficient operation of your vehicle by helping the engine maintain the correct fuel-to-air mixture. Over time, these sensors can become unresponsive ...

Understanding how oxygen sensors work will help you diagnose problems without having to rely completely on a repair shop. Oxygen sensors act as low-voltage producers, such as how a microphone uses ...

Hello. I've had an ongoing problem with my 2008 Corvette for over a year. I have reoccurring fault codes of P0171 and P0174, fuel trim lean on bank one and two. I have had the car to four shops and ...