2000 lincoln ls

[johnls]

I HAVE A PROBLEM, THE CAR KEEPS SHUNTING DOWN WHEN I STOP AT STOP LIGHTS HAS EVER HAPPEND TO ANY ONE I HAVE REPLACE THE PCM , FUEL PUMP, IDDLE CONTROL VALVE , HELP

 

[Right on the Mark]

A stuck EGR could cause stalling but I would think that would pull a code.

 

[JWerner2]

How about a stuck caps lock?