The engine P0657 Code lets you know about the problem and location of the car engine problem. If you are not sure about the car engine’s meaning, make sure that you have found the right meaning of the code by the name of the car and manufacturer. The engine should be fixed properly and do not let the car with the engine problem. Do not try to solve the car engine by yourself if you are unable to solve the car engine or you have no idea about the car engine. The automobile dictionary meaning of the code is primarily useful for solving the car engine.