The car engine C1707 Code is necessary thing and it works properly when the correct meaning of the code is found from the car manufacturer. You will get a general meaning of the code but do not follow the general meaning. This meaning of the code can be a wrong meaning for your car engine. That is why, you should seek the correct meaning of the code what is related with your car. Do not use any meaning from different car manufacturer. Experience and some machines are necessary to use for solving the car engine. A test drive is recommended after solving the car engine problem.