Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

An OBD-II scanner can turn any car owner into a confident DIY diagnostician by revealing what’s behind that dreaded check engine light. From reading trouble codes to interpreting live data, ...

Car onboard diagnostic systems are very useful, but different brands have diverse error codes. Here's the difference between ...

Q:Hi James. I keep having an oxygen sensor fault code for a lean exhaust with my '97 Corvette. I've taken the vehicle to the dealer several times but the problem keeps recurring. I would like to try ...