By the real meaning of the car engine code, it becomes easier to solve the car engine. The car engine P3439 Code is important thing and it has right meaning. The right meaning of the code is provided by the manufacturer of the car. So, you find the meaning of the code from your car manufacturer. However, you will get different meanings of the same car engine code but you do not use all of those meanings. You can use dictionary meaning of the automobile when you do not get the real meaning of the code. The automobile meaning of the code is found from online.