This is probebly the best thread I've read on MVS regarding fuel trims and what they mean.

So as usual, thanks for all the feedback. I finally got around to removing the fuel filler flap motor after getting back from vacation. Simple voltage tests show signs of life from the wiring. I also happened to have a pair of fuel filler flap motors from an '04 V70 P/N 9483311. I hooked them up and...