A while back I noticed in durametric, that the car (05CTT) has thrown a code:

P0299
Turbo/Super Charger Underboost - Value below lower limit value, test conditions are not-completed, fault is not currently active and is not causing a DTC light

I looked around the forums, read the threads and I do know that my next step would be to take to a shop to troubleshoo the leak or try to find on my own.
I want to try to find on my own first.

What I need help with is selecting which turbo boost leak gauges I should buy to help with the troubleshooting. On ebay they have a whole bunch of gauges which people make to sell, but I am not sure which ones I would need.

Can anyone from here suggest how I can choose and where they would have to plug in on the car to do the troubleshoot? There are many great minds on here, and I hope I can summon their brains to help me go to next step (get tools to do the troubleshoot). After that, I will be able to take time and see where the leak is coming from.

Will greatly appreciate it.

Thanks.

 

Ciaka,

You should look into my recently posted YPipe thread. In there, I show a boost leak tester that I just built for my Cayenne.