The car engine P2705 Code plays vital role for solving the car engine. You should diagnosis the car engine to know the cause of the car engine problem. It is important to know the real cause of the car engine problem for solving the car engine and to confirm that you have fixed the car engine properly from root of the engine problem. You can check all possible symptoms what you get in the car engine. The service engine soon lamp is regularly attended by transmission slippage or lack of transmission appointment. Harsh shifting, produced by the transmission control system incoming limp in mode, is also imaginable.