I believe the code refers to purge valve sensor anyone know about this ?

 

What was the exact code number?

 

PO440,PO441,PO446 were the codes that came up tonight

vapor canister or vapor solenoid I already replace the fuel cap
the canister is dealer only part I think it s about $ 325 I m going to try to look under there see if there s a loose hose or connector crossing my finger on being something loose

 

Yes could be a solenoid.

Toyota has a service bulletin on this which may apply. EG013-03. Inoperative
Canister Closed Valve Vacuum Switching Valve. P/N might be 90910–12206

Although the warranty has expired a dealer should be able to tell you if the TSB was every applied to the car based on its VIN.

This is a DC powered switch the open/closes a vacuum line. The switch type is called a VSV.

There are two VSV's one for the EVAP system canister, the other for the vapor pressure sensor. The canister VSV hose connects to the engine.

Could also be the vapor pressure sensor, cracked canister, damaged hoses, fuel tank overflow valve leaking.

You can test VSV's by applying 12V and determining if the valve works.

After market VSV's may be available. If buying from a dealer shop around on the internet where dealer parts are available at lower prices.