Incredible 1994 Honda Civic Ex Check Engine Light Ideas. Turn on the ignition, and then check if the check engine light (cel) is steady or flashing. You don't need to take your car to a mechanic and pay a diagnostic fee for your check engine light (cel) or malfunction indicator light (mil), or even buy an obdii scanner.

Web take the engine spark plug wires, and plug them onto the end of the spark plug one at a time. Web in this article, we will delve into the most common causes behind the check engine light. How to check your check engine light.