I took it to the shop for another problem (differential speed sensor) and asked him to check the codes since my CEL came on before I was having the speed sensor problems. He said that he was getting a Fuel adaptation at limit message. He said it was most likely the MAF and it would cost $350 for the part and about $100 labor. Way too expensive. I can do basic car work but if there is calibration involved, I can't do that. My car has not been shifting right when I gun it so again, it makes me think it's the MAF. Thanks for your help and any more input would be appreciated.

The the person who replaced it himself and the car is running fine...were you having shifting problems? Did it smooth out?