ok so I have been wondering this for a long time what exactly is the Evap system? what does it do? how does it do it? when does it do it? what benifits are there to using it? is it purly for emissions? what are the diferent parts of the system? sorry for all the nube questions I only want to be informed and to further my understanding of the cobalt

 

It's all emissions. It takes gas vapors and puts them thru the charcoal cannister white then dumps into tank and engine under certain conditions.

 

interesting why is it beter for emissions if the gas vapors are coleted and then injected into the engine? and what are the conditions for the system to dump the vapors?

 

and what hepens if it is disconected?

 

gas vaporizes in your gas tank and build pressure. When you open you gas cap you release harmful gas in vapor form into the atmosphere and destroy ozone, LOL.

its not funny this is serious.

No its hilarioUUUsuuSSSS, Shut up!

No you shut up.

Stop talking to yourself, your making this weird.

end.

 

Here you go
http://www.autoshop101.com/forms/h62.pdf

 

thank you that helped a lot
this is the specific information I was looking for

ECM controlled EVAP systems uses a manifold vacuum purge source in conjunction with a duty cycled Vacume Switching Valve VSV this type of EVAP system has the ability to provide more precise control of the purge flow volume and inhibit operation