This P1422 Code is called car engine code and by the real meaning of the code, you can know about the car engine’s problem. This engine code is setup in the car engine and you will same engine in multiple car engines from various car manufacturer. Do not drive the car with the car engine problem. You should not drive the car with the car engine problem. However, you can allow automobile dictionary meaning of the car engine code what is found from online but that may not be suitable always. Read the car engine manual to get the real meaning of the car engine code.