Hello all. Recently I've been comming up with a current p091 code on my 94 deville with the 4.9. I know there are many post about thus but my situation doesn't really match up to what others have experienced. I don't normally get the code until I'm idling in drive with my foot on the brake and will normally go from "current to "history" when I began driving again...car starts normally runs fine. What do I have to do to fix it or adjust the cable. Thanks for the help.