S5 NA ONLY

Using the method shown in the video you can check to see if the Auxiliary port actuators open like they are suppose to. If they do not open at very low psi than you risk damaging the actuators if you apply a great amount of psi to them. Both Actuators in this video fully open with hardly any compressed air applied to them. I have done it with this basic air compressor, in which the psi gauge doesn't move at all. Haynes repair manual 1986-91 is my reference.

http://www.youtube.com/watch?v=966nCKEAZj4

 

I should verify something, I think most people know this but I see Aux port questions sometimes and I don't even know that much about these motors/cars myself, but on S5's a problem with the air pump or solenoid would prevent the actuators from working as well

 

Personally, Mine are welded open... done by the previous owner tho.

 

Thats too much trouble.

All you need to do is use a vacuum splice and bypass the control solenoid for the AUX and VDI. Then, when you start the motor, any amount of rev will actuate the ports. There's no risk of blowing the diaphragms that way.

Suppose that's also a good way to make sure your air pump and ACV is working.

 

Worked like a charm thanks for the help