Can I drive with the Check Engine Light on?

If the Check Engine Light is steady (not flashing), you can usually continue driving for a short time, but you should have it diagnosed as soon as possible. Some codes indicate minor issues (like a loose gas cap triggering P0440) while others point to problems that could worsen. However, if the light is flashing, this typically indicates a severe engine misfire that could damage the catalytic converter. In this case, reduce speed, avoid heavy acceleration, and get to a repair shop immediately.