I need to replace the main relay on my 94 vigor, but I can't seem to find exactly where it is. I already have a new one to install, so once I can figure this out, this job should be a snap

 

The main relay is up to the left of the fuse box/connection panel in the driver's footwell. It's wirtually impossible to see behind the wiring.

You'll need to remove the dead petal and the trim panel in the footwell. You then need to remove the trim panel beneath the steering wheel, along with the metal bracket that the trim attaches to. After that, remove the metal panel behind the trim bracket. Finally, remove the connection bracket that is attached to the round frame member that supports the dashboard, (it's the one that is horizontally mounted below the steering wheel and a bit to the left). Then pull the wiring harnesses away from where they are mounted (plastic pull connectors where the wires are bundled). You can then get at the 10 mm bolt that holds the relay to the metal panel.

It's not a 'snap' but you can do it in under 2 hours. Mine had a now defunct Clifford alarm tucked up there -- adding to the difficulty.