04 A6 2.7t Quattro s-line error codes new owner
 

Just got the car 8 days ago and I got two error codes
P0492 secondary air injection system
P0103 MAF sensor
Would I be able to do the maf system myself and what is the secondary air injection system code? I appreciate all the help i can get. i just got the car and am not looking to fixing an import. Thanks