OBD2 scanners such as this one that’s just $30 at Walmart ($120 off), opened up DIY diagnostics to a whole new generation. Meaning, every driver should have one. Not only can it test your ...

CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the ...