The code that I got from Autozone was P0171 and P0174, each code lists about 5 different things, and an MAF appears, could that be the problem? The guy at the store said that he had people replace them from the same codes and had not seen them back. Rich smell in the cold mornings, other than that it runs great. Any suggestions would be appreciated... we have fixed a few things like, new air filter, #2 spark plug coil, cleaned the bank 2 oxygen sensor...

 

Try spraying the maf sensor with some CRC cleaner. I have done this on multiple cars with 171 and 174 codes and it almost always clears them.

 

Any luck witrh those cel codes?