probly a bad optispark (distibuter). Could be several things but this is the most commen problem with lt1 f bodies
check the air filter sensors, make sure its sealed. itll sound like its stalling out after a few seconds to a few minutes
ECU is probably bad.
If a 2000 Pontiac Grand Am shuts off while in drive, there could be a problem with the passlock sensor. There could also be an issue with the fuel pump.
Check the ignition control module and the coil
I experienced this same problem before too. The security system could be the problem. The imobaliser shuts of the car if it thinks there is a problem with the ignition(if it was hotwired).
What you're describing is more commonly a fuel delivery problem or an ignition problem.
There could be a few reasons why a 2000 Chevy Impala shuts off while driving. There could be a problem with the fuel pump, a bad spark plug, or even a loose battery cable.
It is a common problem for shevy. Usually the Fuel regulator. Or for other vehicles it could be a dirty fuel filter
Check battery cables/connections.
it has to be a relay or ignition problem
its trying to resolve a problem
It could be the fuel pump you should check it and make sure.