Off and on since I've had my 2012 Fatboy Lo, I've had a weird problem when riding.
The headlight will get brighter, the instrument lights will go out, and the engine will not go below the RPM at which the fault occurred. It usually fixes itself in a few minutes. I haven't been able to localize the issue and it happened several times today when I got caught in the rain.

Any ideas? I thought maybe it could be an intermittent ground on the ECM.
I have a V&H fuel pak installed if that helps.