Mine does this too, though only for a second or so. Look at the AFM, I'll bet that is it.  

On Aug 13, 2012, at 6:43 PM, Dave Mcneely <mcneely4@COX.NET> wrote:

> A few seconds is a looooooooooong time when cruising.  When my camper needed a new AFM it would quit without warning, then reengage, but the outage was never seconds long -- more like a second if that.  But when it quit, it quit, then refired.  I imagined all sorts of fuel and electrical problems, but thanks to a knowledgeable mechanic, got on the right track.  mcneely
> 
> ---- JRodgers <jrodgers113@GMAIL.COM> wrote:
>> Was hauling down the road when suddenly the engine just quite for a few
>> seconds. No sputtering, no running rough, no gag-cough-spit. It just
>> quit dead cold then caught again. I feel this to be an
>> electrical/ignition issue rather than an fuel issue. Any opinions about
>> this problem?
>> 
>> Thanks,
>> 
>> John
> 
> --
> David McNeely