The engine B2585 Code is related with the car engine and it has two different meanings. One meaning of the code is general and another meaning is real what is associated with the manufacturer. The real meaning of the code and some expensive machines are necessary for solving the car engine. While fuel economy was increased the loss of engine vacuum led to a unsafe loss of braking assist when the B2585 code system was in 4-cylinder mode. In addition to these matters, while the company planned a hydraulically measured system that could be swapped from within the car, the type they realized had to be manually changed in the engine section using hand tackles.