I am running at 14.8 to 1 AF ratio and have had tuning done I changed the maf out and was looking and the FF looks pretty old could this be the culprit of the lean condition? also the AF is pretty steady lean throughout rpm band let me know

 

anyone experience this?

 

If you're really worried about it, change the filter. A couple bucks and half an hour's work. No big deal.

 

I am changinfg it tomm just wanted to know what you guys thought