[Kayotic77]

Hi I have 2012 genesis 2.0t that has some after market stuff done to it and I think a tune but im not sure how it was tuned. But the issue is that I have a aem boost Gauge and when I give it some gas it seems like it ready 20 psi at some times and goes down from there. Im just not sure if that ok or not.

 

[unsavinghalo]

I'm no expert but I believe that's normal. Your boost will peak and then slowly drop off as you get higher RPM.

 

[AKGC]

If 20 psi is correct, then you do have a tune.

Stock tune only allows it to reach about 18 psi before the ecu goes into limp mode.