The engine P2204 Code is very important thing and meaning of the code lets you know detail problem of the car engine. If you know about the problem, it becomes easier to fix the car engine issues. Do not use wrong meaning or wrong method for solving the car engine what may bring new problem. Always try to fix the car engine by an automobile engineer who knows the process of solving the car engine problem. You can use automobile dictionary meaning of the code if you have no better way of solving the car engine. The main problem is here powertrain.