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Boost leak troubleshooting questions

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I am thinking of troubleshooting my boost leak error P0299. Have questions and hope you fine folks can assist.

1. Are there boost pressure leak kits available for sale for cayenne 03-06 turbo? Not talking about dealer tools costing thousands. Looking for cost effective tools that can be bought.

2. If I have to make my own boost pressure leak kit, does anyone have info on materials list to make it? Sizes, diameters, etc.

3. Assuming I get a kit to PD my boost leak, where would be the best place to block off the piping to start the testing. Do i need to disconnect/block off at one place only, two places, etc.

My plan would be to pressurize to about 12 psi (1bar = 14.7psi), then use soapy water to start spraying each pipe component and junction to see if I observe bubbling. But need advice on where best place to disconnect/block off/connect the kit to for the PD.

If you can advise with a pic or diagram to ensure it is clear what areas you refer to, it would be awesome. Here are diagrams to refer to parts by number, so there is no confusion.

4. Anyone in Austin TX that would be willing to help in PD (thought I would ask anyway - really want to learn about it regardless).

Thanks for help.

Diagram 1 -


Diagram 2 -


Edited by ciaka
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