98 Ford Mustang Fuse Box Diagram - Fuse Box And Wiring Diagram Jul 04, 201398 ford mustang fuse box diagram – thanks for visiting my site, this message will certainly discuss regarding 98 ford mustang fuse box diagram. We have actually gathered many pictures, ideally this picture works for you, and also help you in finding the answer you are seeking. I need the fuse box schematics for a 1998 ford mustang. I Feb 17, 2007I need the fuse box schematics for a 1998 ford mustang. I'm trying to find if the fuel pump is bad, or just a relay, and - Answered by a verified Ford Mechanic. 98 mustang, fuel pump not working. tried checking power and found none at 4 pin connector at tank.