p0440 code saturn

have p0440 code,replaced gas capand cleared code.The code still comes up about every five days. What else could the problem be?

It means u have a large leak somewhere in ur evap system, u have allready eliminted ur gas cap so its coming from another componet in the evap system. You will have to bring it to a shop so they can do A smoke test on it to determine where the leak is coming from