Low down rpm turbo flutter ?

[P1LAYA-ZN]

Goo day gents,

What would cause this turbo Flutter on my S3 8L apart form a defective DV ?

I have tested my 710N DV and it works perfectly.

Boost leak perhaps ??

Should I do a Leak test ?

[ZiF_k]

Mine did this before. Was a vacuum hose that popped off the top of the dv. Have a look at the vacuum hoses around there. Could possibly be torn.

Sent from my ALE-L21 using Tapatalk

[P1LAYA-ZN]

I've checked, no obvious leaks.
Car also doesn't seem to be boosting properly. Just the turbo flutter is very noticeable.
I think I'm gonna do a boost leak test and go from there.
Does anyone have a fitting for a K04 TIP to do the Test ?
I only have 1 for my A3 K03S
Also, when fitting the Boost guage, where is the best place to put a T-piece for Vacuum ?
I know most use the FPR, but is it it the best place ?

[THANAS]

T it from the DV line, that way if it pops off it doesn't drop the pressure to the FPR causing a drop in fuel pressure.

[SoDub]

Have you done any deletes? Mine Fluttered and was not boosting fully. Changed to a new DV and did the same. Bypassed the N249 and it went away.

[P1LAYA-ZN]

I'm actually thinking of doing that delete.
If it works it probably means there is a vacuum leak.
Any simple ways to test for Vacuum leaks ?

[Kyle]

I'm actually thinking of doing that delete.
If it works it probably means there is a vacuum leak.
Any simple ways to test for Vacuum leaks ?

Based in Durban? I’d be happy to assist.

[P1LAYA-ZN]

I'm actually thinking of doing that delete.
If it works it probably means there is a vacuum leak.
Any simple ways to test for Vacuum leaks ?

Based in Durban? I’d be happy to assist.

Yup Isipingo/Toti area.
I sent you a pm.