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DV issue? Need some input.

AxMan

Drag Race Newbie
Location
CT
Car(s)
Audi S5
https://photos.app.goo.gl/Buh9UHoowA5Wne4w7

So I have a Rev C DV, APR plus and the APR intake. This started last week. The DV looks fine. Thoughts?

No VCDS codes. I have attached some info on waste gate voltage. Another R owner on one of the FB groups, who has IE, has the same issue.
 

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Last edited:

AxMan

Drag Race Newbie
Location
CT
Car(s)
Audi S5
Which voltage reading should I choose? I’ll have to check
 

AxMan

Drag Race Newbie
Location
CT
Car(s)
Audi S5
This is running now at idle.
 

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AxMan

Drag Race Newbie
Location
CT
Car(s)
Audi S5
I’m curious if it’s due to high ambient temps. I have the Factory IC as well. Maybe upgrade to a Rev J dV in the future. I did inspect the compressor and didn’t see any damage. And the DV looks ok, but these DVs can by finicky.
 

AxMan

Drag Race Newbie
Location
CT
Car(s)
Audi S5
Likely. I have had the APR one on for a while too and just noticed it. Thanks for the help.
 

Acadia18

Autocross Champion
Location
The Greater Boston Metropolitan Area
Car(s)
2019 Golf R
It's a fairly normal noise. There's tons of examples. Here's another thread with more examples, including some of my own.

Anytime this comes up, you have some people saying it's compressor surge and your turbo is bad, and others saying it's just the DV rapidly opening\closing to maintain boost pressure. I've looked at my own logs when the DV is fluttering, and boost pressure has remained constant, so I'm not concerned about it.
 
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