I have a 1999 Solara with a code of P0440. I have about 130K miles on the car. The car runs beautifully with no major issues. So my question is what is the probability that I may have to change out the solenoid. What is this rated if I were to take it in and have done.I am debating the cost of having it done with the savings of doing it myself however it will take me longer since I don't have the equipment a mechanic has. Is it worthwhile to do myself anyway?

Po440 is the evaporator what is happening is I found
when you over fill your car Thepumps it being over filled
the gas runs down the return
line at the neck and fills up one of the valves on the canister
if you take the canister off get the part number from the valve
it schould have gas in it. Replace. It otherwise replace the who
e thing evap with the valves and stopover filling am I right
please reply I can read minds let 'me know thank you jk

I have a 1999 Camry with this code. Apparently there are a few things this code could indicate. Ultimately, in my car, changing the charcoal canister fixed it. It could also indicate a lift sensor needs or EGR valve needs replacing. As the charcoal canister is basically an "air filter" that doesn't affect how the car runs, I waited until before my safety inspection, as the check engine light wouldn't go off until the problem was fixed!