The powertrain problem of the engine is not difficult problem and it is easy to solve. The engine P279B Code says about the powertrain problem and the code has started with the letter P. The engine code tells about the car engine problem and by following the right meaning of the code, it is easy to solve. Do not drive the car if the car engine is not fixed. Do not drive the car if you think wrong meaning of the code is applied. The wrong meaning of the code may make more terrible problem in the car engine. That is why, you should be careful.