The engine P0902 Code contains some information about the engine. The code of the car engine is fully informative and you need to fix the problem by the real meaning of the code. Do not apply any meaning of the code what is not important for solving the car engine and the meaning has no relation with the car and manufacturer. You must trusty on the meaning of the code what is provided by your car manufacturer. The powertrain problem is a common problem of the car engine and it is not difficult to solve. You can solve the car engine without changing any part from the car engine.