When the car engine is faulty, you must take step to solve the engine problem. This car engine P1707 Code is found for the car engine test. Follow the correct meaning of the car engine code for solving the car engine. It seems that here the main problem is powertrain and this problem is not difficult to solve. You may not the right person who can check the car engine and solve the car engine problem. You must allow an automobile engineer who can do all of these things for you. When the car engine is ok, a test drive is recommended.