At 08:36 PM 7/27/2012, neil n wrote:
>The dark brown spots are where harness was cable strapped beneath the
>air cleaner bracket.

Sure looks like a burn, but I suspect it's really interaction between
the harness cover and the grommets.  If it were hot wires the damage
would be worse on the inside.

Yrs,
d
ps - speaking of P/S pressure switches, you might want to fuse the
red B+ lead from the terminal post inside the wiring box that feeds
the relay box.  Doing that would have saved my harness when something
happened to that wire on mine.  I never determined precisely what
happened, but it was clear that that particular wire got extremely
hot (along with the wiring in the relay box and the relay box cover
and the said B+ lead.).   I've found 7.5A sufficient, perhaps even 5A.