Hello im a new owner of a Hummer H2 2003 and a few days ago the engine light came on so a trip to a nereby mechanic told me that its fault code P0449, Do you guys have any soulutions to this problem?? What could it be?

Thanx

 

P0449 is Vent Solonoid Control Circuit

A quick google says "Just wanted to report back to everyone here for future reference. There is really only two things this P0449 code can be either the vent or purge solenoid. Each part is about $40 and takes 20 minutes to fix. Start with the vent solenoid as it seems to be the culprit about 95% of the time this code is thrown."