I recently clean out my fitv and the word is that if your idle is high, screw in the plastic thingy. well i did that and it fixed the loopiness of the idle. Now it makes a weird moaning sound from somewhere around the intake. My question is, what is the correct depth to screw in white plastic thingy. That's my best guess so far, any other suggestions would be appriciated.

 

its for a 95 b18c by the way

 

help! someone has to have a helms