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's ...

Cars are more than just oil and steel. Modern models have incorporated electronics and computer chips to help manage and optimize their mechanical components. That means maintaining your car's ...

This article was updated in August 2025 with new products and information. That little yellow check-engine light is sneaky. Most of the time, you forget it could be there. But when it detects an issue ...

Americans are holding onto their vehicles longer than ever, with the average age of a car in 2020 rising to a record 12.1 years, according to data from IHS Markit. But if you own a car for long enough ...

The vehicle identification number (VIN) is a 17-character code that tracks every mainstream car built for the U.S. market ...

FILE - In this Feb. 5, 2021 file photo, Ari Thielman, manager at GT Tire & Service Center, holds a catalytic converter from a Ford F-150 that the 155 Colony St. business replaced for a customer in ...

Out of the many dashboard warning lights that illuminate when starting or driving a modern car, the service engine and check engine lights are most often misunderstood or intertwined. Compounding the ...

Answer:Diagnostic Trouble Codes P0155 and P1151 both refer to an oxygen sensor failure. One deals with an open or short in the heater circuit; the other the sensor circuit. Current O2 sensors include ...