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 ...

You're driving down the road, everything seemingly normal. Then, out of the corner of your eye, you see a light come on: the dreaded check-engine light. A lot of people just ignore it; after all, it's ...

What do you do when the "Check Engine" light comes on in your car? A lot of people just ignore it; after all, that sensor is notorious for lighting up for no reason. On the other hand, it could ...

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. The Ancel AD310 Classic Enhanced Universal OBD II Scanner is currently a ...

H ave you ever looked under your car's steering wheel at all the wires, fuses, and plugs? If so, you might find an odd plug ...

OBD-II diagnostic device BlueDriver interprets engine error codes to suggest what might need fixing, and lets you know if your car is ready for a smog check. Wayne ...

When the dreaded malfunction indicator light turns on, it’s not the end of the world. Here’s how to cope with an MIL!

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Something we all dread seeing is the check engine light popping up on ...

The PLX Kiwi device is expected to sell for $99. Other wireless OBD II scanners, including the OT-2 from Innovate Motorsports, are available for the iPhone and connect via WiFi. The check-engine light ...