high pitched whistle

[CRAZY LEG5]

i know this is not a audi but has the same engine and i thought you guys may be able to help me i have a cupra 1m auq and what sounds like a boost leak but i have changed every vacuum pipe deleted everything that's not needed and the noise is still there put a fmic on too which has not cured it the noise sounds like its coming from the passenger side and only does it on boost here is a little vid any help would be much appreciated thanks

 

[ayfreetee]

From what I could hear, it just sounds like the dump valve releasing boost , as it should, do you have an induction kit/ open cone, which will make it more audible.

 

[CRAZY LEG5]

hi thanks for the reply i found the problem i looked past it twice hahaha

 

[Stuart B]

blimey what did that!

 

[IPG]

Something pretty big must've ingressed from the air filter.

 

[vanilla_ice]

Straighten out with long nose pliers?

 

[Stuart B]

Where has the rock gone to?

 

[badger5]

or overspooled