Move the O2 sensor out of the picture, and your vehicle will not be able to set the air-fuel ratio, which brings down fuel economy, overheats the catalytic converter, and can cause a host of other ...

Diagnostics An oxygen sensor that’s going bad or has failed altogether won’t always throw a check engine light or trip a diagnostic trouble code. Sometimes if there’s an internal problem ...

If your Check Engine light is constantly trying to get your attention, one possible problem could be a bad O2 sensor. If you do have a failed oxygen sensor, follow these steps to replace it.

Your vehicle's crankshaft sensor can be, well, cranky. But it's also a key part you can't do without. So what makes one fail? And how do you know if it's bad?

The engine's crankshaft position sensor plays a vital role in ensuring your vehicle is performing at its best. Here are five warning signs that it is bad.