In iOS 26.4, Apple added an Average Bedtime metric to the Sleep section of the Health app, letting users better monitor how ...

Your car's tire pressure monitoring system (TPMS) can fail, but you can still drive. Learn why sensors break and what to do ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

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The camshaft position sensor is an essential component of your car’s engine management system. It monitors the position and speed of the camshaft and sends this data to the engine control unit (ECU), ...

The automotive industry is no stranger to software. For decades, digital modules have made cars safer, more predictable, and—especially with recent advances in traction and stability control—faster.

Diagnosing diabetes could soon be as easy as breathing. Researchers at Penn State have developed a sensor that detects acetone in breath, offering a fast, inexpensive way to identify diabetes and ...

Apple released a small build update to iOS 26 developer beta 6, which does not re-enable the blood oxygen sensor on Apple Watch in spite of the earlier iOS 18.6.1 update that did. The new iOS 26 ...

If you have an Apple Watch Series 9, 10, or Ultra Watch 2 that you bought in the US in the past year, you'll finally get the blood oxygen sensing feature back via a software update later today, ...