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- #61
My 92 3FE was blowing EFI relays and the problem ended up being the wire going into the fuse box where the relay plugs into was bad. It's underneath the fuse box under the hood. The wire gets brittle from the heat of the exhaust manifold and cracks at the connection. Need to replace the wire with a thicker gauge wire. It solved the problem for me.
Is it the wire from the EFI relay to the EFI fuse? In other wards, am I just replacing a wire from under the fuse box or am I redoing a wire from the efi relay to another location in the truck?