P2422 on 2020 HONDA Accord

“I located and removed the drain box (behind left wheel), carefully pried it open to clean it out. There was some debris in there but one thing I noticed is the tube had, what I thought was some kind of cotton filter in it.”

“I didn't want to scrape it out because I thought it might belong there. It wasn't in the rubber tube but rather the tube that is inside the drain box.”

“This car has been sitting for several months and the rest of the car was already covered in spider webs. I got the CEL after starting the car today and bluetooth code reader shows P2422 also.”

“I got the CEL after starting the car today and bluetooth code reader shows P2422 also. I might want to buy a spare vent box and spring before taking it apart, I'm going to be short on time for next couple weeks and might still need to drive this car a bit in the meantime.”

“Unfortunately the gas cap also did not clear the light, it eventually came back. I even went to autozone to have them check for any other codes but it was still only P2422.”

“I got around to replacing the gas cap, the tether clip is the hardest plastic trim piece I've ever tried to remove. Some other places on the internet suggest undoing the two bolts holding the hinge, this doesn't work, there's still not enough clearance to pull the door and hinge out because it's blocked by the plastic shroud around the filler.”