I stopped by autozone today to get my codes pulled because my service engine soon light came on. P0441 is what came up, Evaporation emission system small leak/no low condition. the probable causes are; defective or loose fuel cap (not the cause), EVAP sensor or hose cracked not connected, purge or vent selenoid defective, vacuum leak at engine.
How hard/expensive are these problems to fix?
i hope this makes sense to someone, cuz it doesn't to me

 

This is for the LT1 engine but the proceedures are very close to your car.

https://camaroforums.com/forum/lt1-lt4-tech-9/testing-evap-system-51219/

Happy reading.

Massey

 

Check the filler neck of the tank. If there's any holes it will have a leak. Also, if the lip of the neck where the gas cap goes onto is rusted it won't make a seal. Use some 400 grit sandpaper and sand off the rust on the filler neck to make it smooth.