Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

Having a hard time interpreting the car codes your dashboard is displaying? Car codes can be confusing, so here are the best OBD2 scanners for reading, analyzing and clearing diagnostic trouble ...

If you see the check engine light and haven’t filled up with fuel recently, it’s a good idea to use a code reader or take your vehicle to a shop for diagnosis.

Discounts like this don’t usually last for long, so visit Amazon’s site today and get your hands on the Umeija OBD2 ...

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

Do 'check engine' codes mean Camry needs new catalytic converter? Q: I have a 2003 Toyota Camry with the "check engine" light on. A code reader shows codes PO430 and PO420. How should I proceed?

If that catalytic efficiency check engine code keeps popping up, and it's all alone, a catalyst cleaner is your best place to start before spending thousands to replace that expensive can full of ...