The powertrain problem of the car engine is common problem for the car engine and you can know more detail of the problem of your car engine’s powertrain problem if you learn about the engine P0749 Code. You have to find the right meaning of the code from the car manufacturer and by the meaning of the code, you can understand about the car engine. According to the meaning of the code, you can fix the car engine. Do not drive the car if the car engine is not fixed properly or any problem in car engine is existed. A test drive is recommended finally.