Why Replace A Faulty Oxygen Sensor? A faulty sensor cannot transmit accurate data to the car's computer, causing the engine to run unbalanced. An unbalanced engine either burns fuel with too much or ...

Modern vehicles are pretty complicated pieces of tech. Apart from emissions and other vital functions, the engine control system relies heavily on several sensors to regulate performance. That is ...

I would like to know when it is necessary to change oxygen sensors. I have a Chevy Malibu 2001. Also, if these sensors are to be replaced, why are they so hard to get off? It seems they are welded to ...