The engine P0966 Code lets us know about the car engine problem and fix the car engine by the real meaning of the code. This engine code comes by the test of the car engine and you can test the car engine in the automobile repair center. The main problem of the car engine is powertrain problem and the problem of the powertrain is not difficult to solve. Because you do not need to change any part from the car engine. That is why, fixing the car engine is not costly. You must allow the right meaning of the code what is from the car manufacturer.