On my 05 avalanche it's located behind the gas tank,over the frame.It look's like a cylinder and has a 2 prong wire going to it and a 5/8 hose shrink wraped to it.
This ODB code could indicate a problem with any part of the evaporative emission control system: gas cap, rubber hoses, canister, or purge solenoid.
P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
install updated vent control solenoid valve and jumper harness.
Evaporative Emission Control System control valve malfunction. You need a new evap control surge solenoid valve.
P1443 Evaporative Emission Control System - Vacuum System - Purge Control Solenoid or Purge Control Valve fault Loose or defective gas cap will cause this code.
where is the evaporative emission system vent valve control on a 2000 galant 4 cly engine
Can't!! EVAP is the system that purges and burns vapors from gas tank. It either holds pressure like it should or has leak. Or the vent solenoid or control of solenoid is inop.
If it is the valve on top of the fuel tank, it weel need to be replaced.
It is mounted to the frame of the truck just in front of the fuel tank.
evaporative emission control system incorrect puge flow
Evaporative Emission Control System MalfunctionCausesThe gas cap is not installed or working properlyThe purge solenoid has failedThe canister is plugged and not working properly
0442 evap emission control system malfunction(small leak detected) 0443 evap emission control system purge control valve circuit malfunction 0450 evap emission control system pressure sensor malfunction 0455 evap emission control system malfunction(gross leak detected) there ya go