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 ...

If you’re shopping for a compact SUV that balances efficiency, all-weather confidence, and everyday usability, these two land in a very specific overlap. The Cherokee Laredo transcends the last model.

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 ...

Xiaomi is preparing to launch the 17 Ultra, which is rumored to feature the largest camera sensor ever found in a smartphone. The device is also expected to include a new 200MP periscope lens and will ...

On a weeknight in mid-August, thousands of Jeep fans flocked to a waterfront park in Brooklyn, N.Y., where an ambitious turnaround campaign was underway. Rapper LL Cool J performed, and Jeep, facing ...

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 ...

In a surprise Thursday announcement, Apple says that it is bringing the blood oxygen sensor feature back to the Apple Watch Series 9 and newer. The returning feature will be part of an iOS 18.6.1 and ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

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We earn commissions from purchases you make using links in our articles. Learn more. If your car experiences poor fuel economy, lacks power, feels sluggish, idles rough, or has an illuminated check ...