You need to solve the problem from the car engine and then the B1734 Code will be removed. This code comes when the car is taken to the automobile repair place and engine code reader shows the code. You can solve the problem if you have all necessary tools and instruments and you have sufficient experience for solving the problem of the car. The body of the engine has the main problem and it is easy to fix. By the less money, you can solve the problem of the body of the engine. You have nothing to worry about your car if you give it to professional.