Modern cars generate mountains of diagnostic data, and choosing the right OBD-II scanner can make the difference between guesswork and real fixes.

Simply’s more sophisticated reader is easy to use, with a colour screen and a usefully long 77cm cable, meaning you don’t need to kneel next to the footwell in cars with awkward port locations. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Modern cars are technological marvels, and understanding what’s happening under the hood has never been more important—or more ...