The error U1093 Code becomes visible when the car engine is tested by the engine code reader and it is necessary to know the real cause of the car engine problem. According to the car engine problem symptoms, you will get different causes but you need to know the real cause. SO, it becomes easy to solve the car engine problem. However, for solving the car engine problem, expertise is necessary with hand tools. You should have the right meaning and you can easily find the automobile dictionary meaning but do not use that meaning for fixing the car engine solution.