Glad somebody understands the wiring diagrams better than me. I couldn't figure out the color codes, and the ground from body to engine can't be right, from the valve cover to a brake line strap on the firewall? As for it going flat I haven't checked it yet but I will tonight. That yellow wire with an inline fuse though is confusing me though. I can't figure it out for the life of me, even the wiring diagram says in line fuse but gives no rating for amperage.