I posted this a couple months ago and got different responses. One said not to clean it because there is no need, and the others asked why. So I never got a definite answer. I know there is a screen that needs to be cleaned but I don't know where it is or if its necessary. I have 40,000 miles on my 2000 prelude and I have heard after 30,000 its smart to clean it on other vtec cars. If anyone knows about this I would appreciate some info. Thanks