To know the meaning of the car engine P2519 Code, you need to read the manual of the car engine or search online. The powertrain of the car engine may make trouble for your car engine if it is faulty. You need to solve the car engine’s all problem and powertrain problem. The powertrain problem is general problem what may not be difficult to fix and you do not need to change or add any parts in the car engine. The car engine may make more problem in the car engine if the general problem of the car engine is not fixed properly.