Well on my way to work this morning my SES light came on. Then off. It did this all the way to work and all the way home. i got home and ran the codes and am coming up with a code 26. I've never heard of this code before and what exactly does it mean? Would wiring my new cd changer to the fuse box have anything to do with this. Car runs fine except when cold in the mornings and sometimes will stall out a couple of times. This is the only code besides 12 that i'm getting so any help would be appreciated.
2001 Grand Prix GTP stock, 115K
1997 Park Avenue stock, 156K