I own a 02 Grand Prix and been having a evap code. I checked the Fuel filler neck and it really appeared rusty like crazy. So I just got done 1h ago putting a new one on. Yet the code still stays on, I drove roughly 30 minutes at 55 - 60 MPH and stopped randomly 10 - 15 times turning the car on and off. Running out of options on what this could be causing this error
![]()