The engine P2505 Code is meaningful and every part of the car engine code is necessary to know. If you do not know the process of car engine code meaning, do not try to fix the car engine. The automobile engineer must know what to use when the correct meaning of the code is not found. The automobile dictionary meaning of the code is the second choice when the right meaning of the code is not available. The automobile dictionary meaning of the code is available online and use that meaning properly. Once the car engine is fixed, you must test the car engine.