Catalytic converters are crucial for reducing harmful emissions, but they can fail due to wear, engine issues, or poor-quality replacements. Driving without one may be possible, but it risks legal ...

My car’s horn only works when the steering wheel is upside down. The mechanic told me it would be $700 to fix and mentioned ...

While driving my 2003 Honda Accord, sometimes three warning lights will come on at the same time for second or two: the ...

Your oxygen (O2) sensors are small but mighty — they help your engine run efficiently, cut emissions, and prevent costly damage. With the right OBD-II scanner and a bit of know-how, you can decode ...

Dive into The Register's online archive of incisive tech news reporting, features, and analysis dating back to 1998 ...