emergency light

[zomotropin]

While driving my newly broken in 360 on the freeway I have noticed that my emergency drive light flashes at high speeds(75mph). The light also flashed while I was climbing a steep hill at about 55mph. I have been doing a little electrical work so I think I may have knocked a wire loose, but after a few fires I am quick to blame the electrical system. Any help would be great.
Thanks

[imported_Big Red]

Mine did that also. Once the plug was grounding on the case and once on the muffler pipe. So you know what happened then, a new plug!!