The car engine should be fixed sooner before you get any experience of any problem. The car engine code makes the process easy to fix the car engine. The engine P0994 Code is found when the car engine was checked. The car engine code describes about the car engine problem and location of the problem of the car engine. Do not apply false meaning of the code for solving the car engine. You may get new problem in the car engine and the problem may not be easy to solve. The powertrain problem of the car engine is easy and here the main problem is powertrain problem.