The engine P0122 Code plays important role for playing the car engine problem. If the real meaning of the engine code is found, solving the car engine problem can take longer time. Do not seek the real mening of the code here and there. You will get the real meaning of the code from the car manufacture’s car manual and car engine manual. Do not use general meaning of the engine code, you may face annoying new problems. You should not try to fix the car engine problem as you do not know how to fix the car engine problem and you do not have all machines.