code:PO449, EVAP Emission Control System Vent Vlv/Sol Malf, what is this, and where is this located on my 2005 suburban.
HelloCustomerand welcome to just answer.P0449 is a evap vent solenoid related code. If your suburban has a 4.8L, 5.3L or 6.0L engine, then the solenoid is located close to the frame rail next to the gas tank. If it has a 8.1l engine, then it is located next to the evap canister.The EVAP vent solenoid valve controls fresh airflow into the EVAP canister. The valve is normally open. The control module commands the valve ON, closing the valve during some EVAP tests, allowing the system to be tested for leaks.