wire wire wire

["Mr. Michael D. Fatsi" <mdfatsi@erols.com>]

I replaced my ignition switch. The new one from TRF has four wires
coming off the back which plug neatly into the wiring harness. This
leaves the an empty space where the Brown/Red wire, which goes to the
gulp valve, should connect. So far (one week) the engine has not run on,
but I don't like this loose end. To what wire should I connect this
loose Brown/Red wire if I want my gulp valve to work properly.
-MF