The engine P2405 Code is found in the car engine and it is important thing to learn the meaning of the code. The engine code lets you know the problem of the car engine. So, it becomes easier to know the problem and fix the car engine problem. Meaning of the car engine code is the most important thing. However, if you do not know the meaning of the code and you do not know how to solve the car engine problem, you should not solve the car engine problem. You should take the car to automobile repair center for solving the car engine issues.