> hello, wonder if you could help me, i have an 2005 3s 2.3 i installed an
> aem cold air intake, now  at  certain rpms my car makes a kind of
> fluttering noise, someone told me it was the vvt (variable valve timing)
> any suggestions? car runs fine i've had the intake on for several
> thousand miles no "service engine soon" lights and yes, i dis-connected
> the battery prior to install......thanx!