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 ...

We drill holes in an exhaust header to demonstrate how even the tiniest exhaust leak can affect O2 sensor accuracy and yield unreliable tuning data.

When Should I Replace The O2 Sensor? The answer to this question is complex, as these sensors are not your standard maintenance items. No indicator lights on your dashboard or other means could hint ...

The oxygen sensor was replaced but the 'check engine' light won't go out. Now what? Which octane fuel is best? AAA's Car Doctor has answers.

Regular monitoring of oxygen levels helps in taking action sooner and helping curb the sudden increase in distress. Pro-tip: To get an absolutely accurate reading, a Covid patient should speed walk ...

While millions suffer under a virus that hits the respiratory system, Apple has launched a new watch that may be able to detect respiratory problems with an oxygen sensor. We tried out the new ...

The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...