Whistle on cold start
09-17-2017, 09:03 PM
#1
Whistle on cold start
Hey guys I'm pretty new to the Audi world. The other day I changed my turbo inlet hose from stock to forge on my 01 tt 225 with Amu engine code. When I go to start it for the first time for the day or after it's been sitting for a few hours it has a loud whistling noise, but if I turn the car off and back on again it'll go away. Any idea what this could be? Thanks!
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