i was in another forum and read that every JRSCed car messis up with the vafc on ti is there any truth to that i have a 98 honda civic ex if that helps thanks

Other than manifold pressure being twixed, which if you have a VAFC you can do the VAFC "hack" (mostly turbo applications) to "fix" no it is all bs.

http://www.honda-tech.com/zerothread?id=137901

this link explains it.

And if you need more info...

http://www.honda-tech.com/zerosearch?id=4633520&page=1