[CamryDriver]

Hi all. I'm new here and found your forum searching for this issue.

I have a 2000 Camry XLE V6. It's been throwing this code for about 3 months. P0440. After clearing the code, it returns after about 1000 miles. I've replaced the gas cap 3 times just to be sure that is not the problem. Some searches for this has mentioned the charcoal canister or VSV vale near the fuel tank. Usually those posts also mention more than one error code P0446, etc, not just P0440. Another member here mentioned it could be the over fill check valve as well. Has anyone come across this problem with just one error code, P0440?

Thanks.