For solving the car engine problem from your car, it is necessary to get the right meaning of the engine U1254 Code. You will get various meaning of the engine code and you need to follow the right meaning. Do not drive the car with any type of car engine problem. You can easily know the general meaning of the car engine from online. The network problem of the car can be solved easily and that is why, it is not necessary to change any component from the car engine. So, fixing the car engine cost is cheaper. Do not drive the problematic car.