ISTFA... Who knows about running boost off of the waste gate spring only instead of using a boost
#3
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
The stock ECU controls the Waste Gate Frequency valve which in turn controls and overrides/adds to the mechanical boost limits provided by the spring.
<img src="http://pictureposter.audiworld.com/15624/boostpressurecontrolsystemvag111-33.jpg"><ul><li><a href="https://forums.audiworld.com/s4s6/msgs/150222.phtml">More N75 info</a></li></ul>
<img src="http://pictureposter.audiworld.com/15624/boostpressurecontrolsystemvag111-33.jpg"><ul><li><a href="https://forums.audiworld.com/s4s6/msgs/150222.phtml">More N75 info</a></li></ul>
#5
AudiWorld Senior Member
Join Date: Mar 2008
Location: Norfolk, VA
Posts: 1,486
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
I promptly put it back on, but is that what is expected with no control from the N75? I assume that is how the boost machine works but with more control?
Is this different than what audidrvr is asking?
Is this different than what audidrvr is asking?
#7
AudiWorld Senior Member
Join Date: Mar 2008
Location: Norfolk, VA
Posts: 1,486
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
In my situation it was just the hose that was disconnected.
<img src="http://photos-e.ak.fbcdn.net/photos-ak-snc1/v1926/171/16/1163813651/n1163813651_30273116_6854.jpg">
<img src="http://photos-e.ak.fbcdn.net/photos-ak-snc1/v1926/171/16/1163813651/n1163813651_30273116_6854.jpg">
Trending Topics
#10
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
up ,the boost goes to 20 psi and bounces a little , wont go higher .
i have removed the hose to the waste gate and it does the same , so i would asume that it was openeing the wastgate.
car is stock .
When it gets cold i do get fuel cut some times so i just turn down the boost .
And i know that this isnt the proper way but this is my DD , all extra money goes to my B5 s4 Mods ...
i have removed the hose to the waste gate and it does the same , so i would asume that it was openeing the wastgate.
car is stock .
When it gets cold i do get fuel cut some times so i just turn down the boost .
And i know that this isnt the proper way but this is my DD , all extra money goes to my B5 s4 Mods ...