I was wondering if anyone could point me in the right direction for the turbo wastegate actuator adjustment. I remember seeing some "how to's" at one point in time, but I can't find it anywhere. And yes I did search. Thanks in advance.

 

For the word "wastegate?"

https://www.chevyhhr.net/forums/show...ight=wastegate

 

FYI, you're better off just doing the GMPP stage kit and keeping your warranty intact until it expires. Wastegate actuator is a critical adjustment, and there have been quite a few wastegate hackers busted by their dealers.