engine dieing at idle (fuel pump?) '91 200 20v

[Jeremiah Curry]

Howdy all,

Lately my '91 200 20v has been dying while I am coasting up to a red light
with the clutch depressed.  I don't notice till I go to start up again or
look at the tack.  If I notice while I am still driving I can release the
clutch and the engine starts fine, if I am stopped the starter starts the
engine no problem.  I noticed this afternoon that there is a unusual buzzing
sound coming from somewhere by my rear wheel wells, is this the fuel pump?
and can that cause these symptoms?  Don't know if this matters, but it is
~95 degrees and humid.  Other than that it runs great.

thanks in advance,
Jeremiah