The B1370 Code comes for the error of the engine and the problem seems on the body. The B1370 Code is related with the body of engine and do not change any part of the engine. The poor running signs are reliable with a MAP sensor fault. In adding, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code possible symbolizes a distinct wiring issue. When you get B1370 engine error code on your engine code reader this report will help you. If you do not have all equipment for solving the problem, then you should handover the engine to the professionals.