I keep blowing my ECM-b fuse in my 87 K-30 (350 TBI) and I am not sure why. I know that the fuel pump is on that fuse but I don't think the pump is the problem, but the wiring could be. What else is on that fuse? I have a manual, but it's not a factory one and the wiring diagrams are not very good. Any thoughts as to what wires/components are on the ECM B fuse? Does anybody know where I can download a good wiring diagram?