How do you reset computer in an 1996 Oldsmobile delta 88?

To reset the computer in a 1996 Oldsmobile Delta 88, disconnect the negative terminal of the battery and leave it disconnected for about 15 minutes. This will allow the vehicle's computer to clear any stored codes and reset itself. After the time has passed, reconnect the negative terminal and start the engine. You may need to drive the vehicle for a short distance to allow the computer to recalibrate.