secondary air injection??

hey...went and got my car checked out cuz the servise light was on and it said that my secondary air injection was malfuctioning along with my purge valve...anybody know what a secondary air injection is? and how do i fix it?

If you found out how to fix this problem
or if you have any related info, PLEASE
let me know. I have the same problem with
my 95 Z28.

What year car is it?

But here are some pics for a 95, but I think they are the same for 93-97 LT1's.

http://shbox.com/1/diverters.jpg

http://shbox.com/1/temp_sensor1.jpg