l have a 1996 buickthat keeps stalling. had the fuel pump and fuel injectors changed.The fuel filter,air filter and spark plugs were changed.But it is still stalling. l can be driving from 20 mph to 65mph and it will just shut off? Help.

hmmm, have you had the coil checked? does it just stall out of the blue or does it hesitate sometimes and stall? Could be ECM or even a bad alternator, if voltage drops, it could cause the computer to shut down.
Hmm, could also be a relay.

It is most likely electrical. Most intermittent problems like this are a relay failing or something in the ignition system. You have to ''catch'' it misbehaving to tell what it is though. If you can test the fuel pump for or ignition coil pack for power when it is stalled you may be able to trace back to the problem.

Time for a shop visit.

Random part replacement did not work, did it? Nope.

A tech with the proper scan tool that will plug in and take real time data when the stalls out will diagnose better than anyone else here can.

ignition module under coils common to go bad and cause dying or no start