2010 Kia Soul P0455 Large EVAP Leak Code

If anyone has had this code on this car and been able to fix it I’d love to know what did it. At this point I’ve spent over $700 on replacing parts that haven’t been the issue (despite using a smoke machine). Here’s what I’ve already done: replace gas cap 3x(even went and got a Kia authorized one most recently), replaced purge valve, replaced the gas tank hose as well as another small hose that I don’t know the name of. At this point I genuinely don’t know what to do if anyone can help please let me know!