There are some causes of the engine P0366 Code and you need to know the real cause for solving the car engine problem. The real cause of the engine problem is found if the car engine is tested and analysis all symptoms of the car engine problem. The engine code supports for solving the car engine problem. That is why, right meaning of the code is necessary to know and use. Do not follow wrong meaning of the code and it may make terrible problem in the car engine. The automobile engineers knows well how to solve the car engine problem.