The engine P2788 Code is found from the car engine by the test. Do not take the car to improper place where you do not get all necessary things. If you know how to solve the car engine and you have all machines, you can try to fix the car engine’s problem. In this car engine, the powertrain is faulty and this problem is not difficult to solve. No need to add or change any part from the car engine for solving the car engine. Do not allow any immature automobile engineer to fix the car engine. You must allow an experience automobile engineer to solve the car engine.