The B1401 Code arises for the mistake of the engine and the code explains the problem. The code has different meanings and it is necessary to know the meaning of the code well. The code meaning changes for the model and manufacturer. The poorly performed symptoms are reliable with a MAP sensor fault. Moreover, in some cases, a bad MAP sensor will not toss a code. Again, the ELD code possible signifies a separate cabling issue. Although fuel consumption was enlarged, hurrying was really conceded, and the loss of engine vacuum led to an unsafe loss of braking support when the B1401 code system was in 4-cylinder mode.