You need to check the car engine if you need to know about the problem of the car engine. The engine P1659 Code is set in the car engine and to know the actual code, you must take the car to automobile repair center where some expensive machines are available. By the real meaning of the code, you can know the problem. The automobile dictionary meaning of the code is also available online and it is good for solving the car engine. If you do not know how to solve the car engine problem, you should not try to solve the car engine problem by yourself.