The engine P1905 Code carries some information what lets you know some information what you need to use for solving the car engine. The powertrain is the faulty here and that problem can be fixed easily. However, rest of the parts of the car engine code also meaningful what also gives you some information and help you to fix the car engine problem. The engine code is important thing but you should not use the engine code in wrong meaning. The wrong meaning of the code is different meaning of the code what is found from different sources or different brand of the car engine code.