this should explain a few things about the emissions on autos. ;-)
http://autos.yahoo.com/owning/mainta...iss%01qamuffle

your engine likes to run lean

"gutlessjetta" > wrote in message
oups.com...
> I'm not sure what you mean by the CO?I replaced the whole air intake
> system already, if you mean the ground at the cylinder head, if you
> mean the one by the valve cover, you may be right, because it is loose
> one a little oily, I'll try to clean up all the grounds i can
> find,cause ya never know,the gas consumption is alot worse now aswell
> just remembered now to mention it, but it may be a pointer
>