Your vehicle has a problem if the check engine light (CEL) glows. Diagnostic trouble codes (DTCs) stored in the computer help find the cause.

Before I figured out how to work on cars, onboard computer systems scared me. I’ve had no formal training, after all, so the idea of a car’s complex electricals and countless sensors made DIY work ...

The 1980′s were well known for questionable fads and trends that thankfully didn’t stick around, but one thing that did was the notion that motor vehicles needed to produce less emissions. Thus, the ...