I'm new here and I have been battling a slow gas fill. Two issues here. I had the check engine code 0449 for bad EVAP Solenoid Canister. Replaced that and I run into the code 0446 Vent Circuit Malfunction now. Wondering if I have a bad part of I installed the canister kit wrong? Does this have something to do with my slow gas tank fill? I'm having issues with the tank assuming it's already full (backing up quite quickly).

Much appreciate the help.

BTW I searched the threads and find all sorts of contradicting answers.