The engine P0221 Code is a notification of the car engineer and it tells about the car engine problem. The engine code has various meanings and you need to read the right meaning of the code. Do not allow any meaning of the code and for the right meaning, you need to know the manufacturer name and car model number for fixing the car engine issues. However, if you do not know how to solve the car engine problem, you must take the car to professional and do not drive the car until the car engine is fully fixed. You should drive the car for a test drive.