running rich ford says maf and k&n at fault

[Xzibit A]

bank 1 sensor 1 and bank 2 sensor one are those codes, replace just the front 2 and you should be good to go

 

[hiridin]

well friday i changed it to the stock program... reset the battery... got rid of the cel. drove it all weekend and today and no more cel. i guess it was the program i got. does that mean it was a bad program? or is that one of the problems with running a custom program...? it definitely helps the power but i know its not good to run the engine incorrectly. does that constitute another program in place of the two i got? or is that a chance u take when buying something like that?