Onboard diagnostics (OBD) systems have been around since the 1980s and were developed to help limit harmful automotive exhaust emissions. Between 1988 and 1995, U.S.-built vehicles came with what ...

A check-engine light could be a gentle reminder or a sign of something catastrophic. We explain what a malfunction indicator light is and what you can do about it.

Ignoring your check engine light could result in immediate car problems or deterioration over time. “These codes are annoying, but they can be serious enough to leave you on the side of the road ...