This engine P3470 Code is found for the problem of the car engine. If the car engine is not tested properly, it is difficult to know the cause of the car engine problem. There are various car engine problems may launch the car engine code. The car engine should be tested properly and find the real meaning of the code. You should test the car engine by an automobile engineer who knows well how to find out the meaning of the code and how to use the meaning for solving the car engine. The car engine can be fixed easily if the engine problem is light.