The DTC P0449 is: EVAP Emission Control System Vent Vlv/Sol Malf Straight out of my code book. Hope this helps you out.
Trouble code P0449 means: EVAP Vent Solenoid Control Circuit Malfunction
Trouble code P0449 means: Evaporative Emission System Vent Control Circuit Intermittent
P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
No, but you will fail an emissions test.
Diagnose the problem and fix it
PO196 mercedes
P0449ChevroletEVAP Vent Solenoid Control Circuit Malfunction
The most probable cause is a vacuum leak or a bad fuel cap. Inspect all the vacuum hoses for damage and buy a new fuel cap, making sure it is tightly on the vehicle.
How to fix Dodge grand engine code P1391
How to fix dodge grand engine code P1391
The engine code P0355 is for a malfunctioning ignition coil. This can be fixed by replacing the coil. It can be purchased at any auto parts store.