Ok. I’m assuming that your talking about the FITV. That’s what 91civicb16a said. So I took it apart, how do I know if that plastic piece is right? I sprayed it down with some carb cleaner. Is it supposed to be floppin around in side there? After sprayin with carb cleaner I put it back on and nothing. Its still doing the same thing. Maybe I didn’t clean it good enough.