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 ...

Buying a used Toyota may seem like a straightforward decision, and understandably so. You very rarely hear about them being affected by major faults that leave them undrivable for long. Plus, Toyota, ...

Early last year, Apple made the bold, court-mandated decision to remove the blood-oxygen feature from the Apple Watch Series 9 and Ultra 2 in the U.S. over a patent dispute with medical technology ...

Sean is a JDM and off-road enthusiast of many years, and an automotive photographer. He holds a B.A. in Literature and Writing Studies, an A.A. in Communications, and an A.A. in English. He is ...

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Apple removed all mentions of the blood oxygen feature from the Apple Watch's features overview page. Credit: Apple We knew it was coming, but now it's official: Apple Watch Series 9 and Ultra 2 no ...

In the latest step in a legal battle over a blood oxygen sensor, a federal judge has ruled that Apple cannot sell its Series 9 and Ultra 2 smartwatches if they have the feature in question. Just a ...

The RAV4 is Toyota's best-selling SUV. You almost can't go wrong simply plucking one fresh off the lot. The RAV4 is versatile, reliable, and affordable. It's the kind of car you get when you need ...

The O2 sensor is placed on the exhaust right before the cat. There is only one. You can find the connector that goes to the ECU right behind the bottom side panel that covers the frame, among other ...