princejhjw

po441purg, po442 leak, po446 vent codes come up sometimes smell gas in the morning after starting, runs fine

FlopTop04

PO 441 = Evaporative Emission Control System Incorrect Purge Flow
PO 446 = Evaporative Emission Control System Vent Control Circuit
PO 442 = Evaporative Emission Control System Leak Detected (small leak )

The Service Manual details 21 separate checks and tests for these codes over 27 pages. All of them center around the Fuel Tank Over Fill and Charcoal Canister EVAP system.

Are you topping off the gas tank when you fill up?

mandyfig

Fuel tank overfill, a lot of people are still doing it, like it was saving them a ton of $$. Need to get off that habit.

Cars are designed to detect an overfill.

hlthlnk

I was getting the same codes and after a few minutes of research on the forum I was able to figure out that my engine mounts needed to be replaced. So, what do engine mounts have to do with the codes??? Well, if you are looking at the engine bay on the right side of the engine you will see a green cap for the ac an two little hoses, one of them was disconnected because of the mounts being broken allowing the engine to move more then it should. Take a look and I hope this helps. Good luck.