Hamm0
New member
My car ('10 GTI) recently started throwing code P2279 (Intake Air System Leak). The car idles, drives, and sounds fine, howerever it is custom stage 2 tuned. To try and diagnose the problem, I first visually examined all of the hoses and connections in and around the intake system. I then removed the PCV valve cover to look for rips in the diphragm, there were none (Its likely not the PCV at all, as it was replaced <2 years ago). Not really sure where to go from here, the car is also throwing P0420 and P2570 that may be related? Im currently working on sourcing a new radiotor to resolve P2570 as it likely relates to the direct ozone temperature sensor. And I just purchased a mini cat, or O2 spacer, to resolve P0420 that likely relates to my aftermarket DP. Any advice or diagnostics to help me resolve this are greatly appriciated!