Does it stall while idling or does it stall as you come to stop ??

These are two different problems.

Stalling while idling can be a malfunctioning MAF or a frozen IAC motor.

Stalling while coming to stop can be the Transmission Torque Converter, on automatics, not unlocking, or the IAC motor freezing.

Pete...

98.5 SE Sport Duratec ATX (P66L)
Black Clearcoat on Greystone
DOB 11/21/1997
DOP 12/25/1997
PIAA 510 Super White Driving Lights
SVT CAT-BACK EXHAUST (No Resonator)
DiabloSport Chip (LPQ4) - Engineered To Raise Hell
Too many other mods to list...
Sounds sweet, runs quick...
Crazy Horse Dyno @ 121.4 WHP/129.6 TQ