Appoint an automobile engineer to solve the car engine and the automobile engineer use expensive machines to test the car. The engine P1628 Code has found from the car engine on the car engine code reader. The powertrain problem of the car engine is found here and for solving the car engine. This problem is not difficult to solve. In this case, it is not necessary to change any part from the car engine. You need to use some hand tools for solving the problem. Once the car engine is ready to sever properly, you need to take the car for a test drive.