At 2200rpm-2500rpm my engine stutteres and hessitates if I am at around 1/2 throttle or below, and it is normal over 1/2 throttle. After about 2500rpm, everything is smooth. At idle the rpms go up and down, very inconsistently. I dont think its a vacume hose or anything because vacume leaks are usually consistant.
I have changed the pcv valve, cap and rotor, I checked the spark plugs, they are fine, fuel filter was changed recently, and I dont think my VTEC sound loud as it was? any more suggestion on what to check or do?

 

same things happening to me...

 

I was told to check my IACV. Where is that located? anybody got pics?

 

the iacv in located in the back of the intake manifold. Try this site. It might need to be cleaned

http://www.imagestation.com/album/?id=4291328805

 

Thanks a lot bro.

 

yep