Possible causes – EVAP control system pressure sensor– EVAP canister purge volume control solenoid valve (The valve is stuck open.)– EVAP canister vent control valve– EVAP canister– Hoses (Hoses are connected incorrectly or clogged.) Tech description There is a factory service bulletin for the following Nissan models: 2002 Nissan Altima2003 Nissan Altima2004 Nissan Altima2005 Nissan…