We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

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 ...

That's where OBD-II scanners come in, giving enthusiasts and everyday drivers a window into their vehicle's diagnostic systems. If you're chasing down the cause of a check-engine light, ensuring peak ...

Q:I have read all three “Rough Running” articles and have a question. Part 3 specifically addresses 1982-1995 (OBD-I) EFI problems and talks about diagnosing fuel injection problems using a scanner. I ...