The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

Before I figured out how to work on cars, onboard computer systems scared me. I’ve had no formal training, after all, so the idea of a car’s complex electricals and countless sensors made DIY work ...

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Diagnostics go mainstream: Affordable OBD-II apps and adapters now let everyday drivers access real-time car data once limited to professional tools. Fleet management boost: Plug-and-play OBD-II ...