Only an issue if the engine is running when its flashing.me&pathy wrote:ok so a flashing light means miss fire right? well ok so a couple days ago i was driving it felt fine, i got home turned the truck off opened the door and the moon roof was on tilt so i turned the key forward and closed the roof. Well the check engine light i know its suppose to be on when the motor is off was flashing at me. So i started it up and the light went out. Hasn't done it sense just thought it was odd.