The check engine light (CEL) comes on when the on-board diagnostics second generation system (OBD II) detects an emission system problem. And yes, you can legally turn off the CEL yourself. But is ...

It happens at the worst time - stuck in traffic or a long road trip - when you see that check engine light flick on. Here's why it may keep returning.

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 ...