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Trouble code P0449 means: EVAP Vent Solenoid Control Circuit Malfunction
P1443 code evap emissions control malfuction no voltage at solenoid.
Trouble Code P1457 means:Evaporative emissions EVAP control system leakage So to fix it you need to replace the EVAP Canister
In the 2001 Toyota Corolla the evap purge solenoid valve is located near the underside of the air cleaner. This is an emissions control device.
No, that code is for the evaporative emissions control system in the fuel tank. It has nothing to do with the catalytic converter.
There is no such thing on this car.
Answering "What emissions control device on a car lowers carbon monoxide content?"
The Evap canister (charcoal canister ) collects fuel vapour until it is drawn into the intake system when the evap solenoid is operated by the ECU
the catalytic convertor
Trouble code P1456 means: EVAP Emission Control System Leak Detected (Fuel Tank System)
P0455 = EVAP Emission Control System Leak (Large). Could be as simple as a loose fuel cap. You can keep driving. This is only emissions related but it will fail an emissions test.
The evap control valve is on the cannister