Check the main engine fuse, it's toward the front of the fuse box under the bonnet, it's happened to me a couple of times for no reason that I could pinpoint, it's the one that has to be unbolted or unscrewed from memory .... Worth a quick look.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.