That dreaded check engine light doesn’t have to mean panic—or expensive guesswork. With the right know‑how and tools, you can turn those cryptic OBD‑II codes into clear clues about what’s wrong.

Before launching, ensure you have installed .NET 6.0 SDK. It should tell you where to install it upon first open, but if not, you can download it from here. Most people should click x64 in the top ...