1992 Honda Prelude Tail Lights, Fog Lights and Guage Light

I was racing a car and going about 140 and my fog lights tail lights and guage lights all went out at one. I checked all fuses and wires with test light, all fuses were hot, only headlight wire was hot coming out of the fuse panel. All fuses and relays good in the under hood fuse box. Replaced light switch and that was not the problem. I dont know what the problem is.