Scotty, I have a 2001 Camry with a 2.2 liter. I am getting a p0440code numerous times and a p0442 a couple times. Purchased a oe fuel cap but still getting the code 440, visibly checked vacuum lines to see if any were broken or worn not coming up with much. Filler tube on gas tank looks fine. Where do you think I should look next? Thanks

often a bad evap cannister vent valve, or bad vacuum switching valve on the evap system.