The location of the computer plug (also known as the diagnostic connector or OBD-II connector) on a 1993 Buick LaSabre is typically
under the dashboard, on the driver's side. It's usually near the steering column, but its exact position can vary slightly. You might need a flashlight to see it clearly.
It's a rectangular connector with a standardized 16-pin configuration. If you're having trouble locating it, searching online for "1993 Buick LaSabre OBD-II connector location" along with images might help you visually pinpoint it.