I would need a little more information about your problem. Did the check engine light come on? After it shut down did it start back up? How were you driving when this occured?
On a 1994 Buick LaSabre why does the engine continue to rev up while driving even when the brake is applied ? or when driving why doesn't the engine return to idle when the brake is applied? I would check for a vacuum leak
sounds like a mass air flow sencer
Fuel pump sensor relay
They were in production for a while... Ill check with GM or go to Ebay...
Out of gas
No.
Happened to me .. it was the crank sensor. Pretty inexpensive to fix
you buy a new car!
Area where your left foot rests while you are driving
One of the main causes for a 1998 Buick LeSabre to die while driving is a problem with the computer. The computer might tell the fuel pump to shut off and stop sending fuel to the motor.
mass air flow sensor
It's at the bottom of the dash where your left leg is while driving