This engine P2779 Code is found in the car engine. This code is found from your car engine by the test of the car engine. Meaning of the code is more important thing for solving the car engine problem. However, here the powertrain is faulty and it needs proper solution. You can solve the car engine when you know how to solve the car engine and you have all necessary things like hand tools and some expensive machines. However to fix the car engine and all important tools are available in the car repairing center. You can take the car to automobile center to fix the car engine.