The meaning of the engine P279A Code lets you know about the car engine’s problem and you may get the right meaning of the code according to the brand name of the car. The meaning of the engine code is found from the car manufacturers and you need to use that meaning what is provided by your car manufacturer. That is why, you should not follow any other meanings or the automobile dictionary meaning. Do not try to solve the car engine if you have no expertise for solving the car engine. Some hand tools are used for solving the car engine.