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 ...

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 ...

Studies found that pulse oximeter devices are less accurate for dark skin tones. Apple is facing a proposed class action lawsuit alleging the Apple Watch's blood oxygen sensor is racially biased ...

When the dreaded malfunction indicator light turns on, it’s not the end of the world. Here’s how to cope with an MIL!

In the world of automotive tuning, knowledge is horsepower. Gauges, loggers, and sensors galore provide the data to advance performance, solve problems, and prevent expensive engines from experiencing ...

Land Rover says some of its 2010-12 LR2 models may illuminate the Check Engine light and log O2 sensor trouble codes P2097 and P2099 in computer memory. If there are no drivability symptoms associated ...

My question is about oxygen sensors. I own an ’09 Dodge Ram 3500 with 80,000 miles on the clock. I service the 6.7L Cummins engine every 3,000 miles, and it’s been trouble-free, with the exception of ...

Q: My 2000 Nissan Pathfinder was diagnosed with a knock sensor problem after a mechanic scanned the OBD2 codes. (The check engine light is on.) It did not pass the annual inspection. The car has no ...

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 ...