guys im confused. is the CANISTER VENT VALVE, located on the "pump module" which consist of the CVV, Solenoid and pump, attached to the canister, part of the canister with CANNOT be replaced, or CAN? a diagnostic i saw said replace canister, but rock auto, etc carries the canister vent valve. I know on my 99 Camry BOTH were available that year. would really appreciate it, thanks!