I need help! I dont know what went wrong...

Mine kept loading up with fuel. Which = raw fuel fumes dumped into the engine bay. Not good. A replacement canister was $$$. Once they get saturated with fuel, they don't really ever "dry" out properly. Kinda like Baking Soda for the smell in your fridge. You can shake it and "help" it, but it's better to replace it when it becomes sautrated.

I ended up capping the lines and removing it all from the car. I do get pressure build up in the tank, but it made it through a very hot summer with no problems.
 
I guess what I am going to have to do is remove the wheel well to take a look at it because Sometimes I have that faint smell of fuel in the engine bay so I think that might be bad. But does caping it off effect performance at all or fuel economy?
 
I guess what I am going to have to do is remove the wheel well to take a look at it because Sometimes I have that faint smell of fuel in the engine bay so I think that might be bad. But does caping it off effect performance at all or fuel economy?

I'd hold off on worrying about capping stuff - you might simply find cracked hoses at the CC once you get the wheel liner off. The discharge line from the CC to the purge solenoid gets abused.

Good luck.