When your check engine light comes on, here’s what you should do: 1. Check if it’s flashing or solid Flashing: This usually indicates a serious issue (like a misfire that can damage the catalytic converter). Pull over safely and turn off the engine. Get it towed or checked immediately. Solid: Less urgent, but still important. You can usually keep driving short distances, but you should get it checked soon. 2. Check the gas cap A loose or damaged gas cap is a common cause. Make sure it’s tight an