I connected a multi-metter to the wire harnest connecting to the canister and I wasn't getting any voltage/current/ power to the canister.
Isn't the canister always suppost to be receiving power?
I just changed both of the Air fuel sensor wires, if incorrectly install would tis cause PO446?
have you check broken, cracked or clogged intake and EVAP hoses? That is the first step along with replacing the gas cap with a New Orginal toyota gas cap
vsv for pressure switch valve is by the engine bay
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