Field notes

Behind the scenes.

How we're building FaultFinder, what we're learning from real diagnostic data, and the engineering behind making "why is my check engine on" a question with an actual answer.

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Privacy by Architecture: How FaultFinder Protects Your Vehicle Data

Your vehicle data is sensitive. Here's how we built privacy into FaultFinder's architecture from day one — not as a policy, but as code.

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Why Code Lookup Is Not Diagnosis

Every OBD2 app on the market translates DTCs into English. None of them tell you what's actually wrong. Here's the difference — and why it matters.

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