94 olds 98 pass key fuel code

I still have this problem with my olds cutting out on me then starting right back up. I had it put on a computer and a pass key fuel enable code came up. I tried cleaning the ignition and spraying some wd in the switch. I also tried a different key.It will start up and sometimes run foe 15 mins until it shuts off. then it starts right back up. Sometimes it happens at a stop light and sometimes even going down the road! Any info would be greatly appreciated. Mark