I had a B6 2005 1.8T USP and totalled it, I just bought a 2006 A4 2.0T and it has an engine code P0442. The guy I bought it from says he replace the gas cap bit it not OEM, replaced the purge valve and PCV. After about 180 miles the light came back on. How and what is the easiest way to fix this issue? All and Any help would be greatly appreciated.

Sent from my SM-G930P using Audizine mobile app