Oxygen sensors are not among the maintenance items that need to be replaced regularly, so they typically are replaced only when they fail.

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 ...

What Can Happen If You Drive With A Bad O2 Sensor? Your car will still run with bad O2 sensors, but that doesn't mean it's a good idea to drive your vehicle in that state.

One of the most common reasons your check engine light comes on is a faulty oxygen sensor. Here's how to detect problems with the sensors and how to fix them.

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.

The gurgle, pop or bang of a car backfiring can be frightening! Wonder what casues that noise? There are lots of ...

Finally, a bad O2 sensor can have other consequences also. Besides potentially causing damage to your vehicle, you'll also probably fail an emissions test if you have a faulty O2 sensor.