So I've had this P0456 code pop up. A few months ago I replaced vapor canister vent solenoid and the gas cap. I'm wondering where else a leak may be coming from. I have 205k miles on it so I don't know if there is another common area where a leak might pop up. Could this be an issue with the purge valve at all. I'm not exactly familiar with the EVAP system, but I would assume it could be a bad hose or hose clamp somewhere.
Let me know if anyone's had any similar issues.