You must not allow any wrong meaning of the car engine of the engine P1173 Code. Because the wrong meaning of the code makes serious problem in the car engine. You must not try to solve the car engine by any wrong meaning for solving. The automobile dictionary meaning of the code is available online. However, do not take any action by yourself. You must not fix the car engine if you are unable to fix the car engine. Do not drive the car with engine problem. The problem of the car engine should be fixed by expert automobile engineer.