The engine C1423 Code is very important thing for the car engine. It is easy to know the problem and fix from the car engine. Do not use wrong meaning of the engine for solving the car engine. If you use the general meaning of the car engine code, do not follow that meaning. You will face different problems. The general meaning of the code is general information and it helps nothing for solving the car engine problem. If you are automobile engineer and you know how to solve the car engine problem easily and you know how to find the right meaning of the code.