The engine P279D Code is applicable for fixing the car engine and in this case, right meaning of the code is necessary to use. The code is linked with the powertrain of the engine and when the car engine is fixed, the code will not show on the engine code reader. The code has different meanings and according to the right meaning of the code, you can solve the car engine. However, do not drive the car if the car engine is not fixed. The engine can be fixed if the powertrain problem can be solved. The problem of the powertrain is easy to solve.