The car engine code is found if the car engine is tested by machine. There is no any other way to identify the car engine code. The car engine codes are available in the car engine but you need to know the specific car engine what is related with your car engine problem. The car engine P2677 Code is found from the car engine after testing the car engine. The powertrain problem of the car engine is general issue and this problem should be fixed as soon as possible. Although, this engine problem is general problem but it can be serious too.