You should not relay on the false meaning of the car engine P1454 Code and do not drive the car with the car engine problem. You must use right meaning of the code for solving the car engine. You should fix the car engine by an automobile engineer. You need to know the real cause of the car engine problem and you should check all symptoms and check those too. If you do not know the process of solving the car engine, you will allow an automobile engineer to fix the car engine’s issue. Do not drive the car with the engine problem.