Where is the pass-key module located on a 1992 Oldsmobile Eighty Eight?
in the dashboard,remove the glove box then it is just above the ecm.
I have a 1990 Oldsmobile Eighty Eight, and had the same problem while driving it, it would lose power, start jolting or missing really bad, then stall out completely in the middle of the road!! Well, after checking plug wires and changing the coil pack, we finally went ahead and changed the ignition control module which is located just underneath the coil pack, and the car is now running like a dream!!
it will be on the ingition cylinder assembly should be closer to where the key hole sometimes intigrated with park lock switch. don't touch unless you have access to programing software and/or know what you are doing. if it doesn't have the right programming then it won't start or it will die shortly after starting.