The error engine P1484 Code is very important thing and you need to solve the car engine. You can find the real meaning of the code from the manufacturer and you will get information from the automobile manual. Read the manual of the car engine and find the meaning of the code by the name of the car and car manufacturer. Do not allow wrong meaning of the code and do not fix the car engine by yourself if you are not able to fix the car engine. The main problem here is powertrain and this problem is easy to fix without changing any part of the car engine.