Emissions vent controll system

[James Johnston]

2004 Chevy Silverado 1500 - 4.3 v6 regular cab standard trany

 

Hi guys need some help please...... got this code P0449 and replaced Vent Valve solenoid and then new gas cap and Purge Valve solenoid, engine light stayed off for 4 complete cycles....Cold startup to operating temperature and came back on and I'm now getting a generic read out on my OBD II saying it's the Emissions Vent control System.

 

Is it possible that one of the lines going to everything could be damaged??

 

 

Thanks in advance for any help!

 

Cheers J.J.

[Daryl LBZ]

*Moved to correct section*