My 99 Forester check engine light code is p0440. Anybody know what this means, and how do i fix problem. Thanks

tighten or replace your gas cap and check for rust on the gas tube. given that you live in ohio the rust sounds likely, we have it all the time.

 

up above is a search function, best thing to do is just to type that exact code into the search function. P0440 and you get a ton of hits like this one:

 

http://www.ultimatesubaru.org/forum/showthread.php?t=63049&highlight=P0440

 

google works well too.