i found the wiring harness diagram but the ones i have seen fail to list the color codes of the wires coming out of the main relay http://208.62.166.66:82/guest/shop_m..._non_turbo.pdf
I need to find out what the blackwire with a white stripe that comes out of the main relay connector goes to. My hanes book says "air bypass solenoid valve" but i dont think thats it. Cause the guy i got the car from took all the egr stuff off so if thats where the wire goes i wont replace it when i replace the connector yeah? thanks

 

You can see the main relay on the left side of this wiring diagram. Follow the B/W wire to continuation point 9...

http://i8.photobucket.com/albums/a47...A-Ignition.jpg

...then from the top-left corner of this wiring diagram to all the other things powered from it.

http://i8.photobucket.com/albums/a47.../NA-ECUOne.jpg

All the S5 wiring diagrams are available here: http://photobucket.com/albums/a47/S5_wiring/