It is necessary to know the meaning of the B1587 engine Code. This code is also found for different car engines and based on the mode and manufacturer, the meaning of the code changes. You need to solve the problem if you want to run the car with this engine. From the code, it is identified that problem of the engine is related with body of engine and no component is necessary to change. The bad performing indications are reliable with a MAP sensor fault. In addition, a bad MAP sensor will not show a code. Again, the ELD code likely signifies a distinct wiring issue.