Pics in your first post actually look like the vacuum actuator for the secondary intake runners (IAB) in my GSR. Does H22A even have secondaries?

 

They were hella clogged up, when I got the code I cleaned the egr valve and down in the ports as good as I could, then I found out egr valve was bad and had it replaced.

I have no idea

 

I found this pic on hondatech on a civic with h22a. This guy has his thingie not hooked up to anything either but hes got one line capped off for some reason. If you look on far right it looks like his egr vavle isn't hooked up at all

 

I looked up for a '97 Prelude - that IS a 2-stage intake manifold, like I thought. That thing opens the secondary runners for better breathing at higher rpm.

 

Ok so does that thing have to be hooked up to something?

Thanks Jim

 

Yeah. Check with the Prelude forum for details, since that's what the engine probably came from.

Below a certain rpm it's better with it closed, so a valve applies vacuum to that thing to pull the butterflies closed. At higher rpm it opens up. Leave it disconnected & it's open all the time, so low-end torque suffers a bit.

 

That diaphram CLOSES the secondary intake runners. If the diaphram were to be left with no vacuum lines running to it, the intake runners would stay OPEN all the time. There is a little black vacuum box under the intake manifold that closes the intake runners as soon as you turn the key on. At a certain RPM your computer shuts the power off to that vaccum box and your intake runners open up. You can acctually take the top of the intake manifold apart and remove the whole runner setup for a strait through manifold. I havent done it to my h22 but someone i know with a prelude did it(he had a fully built h22a) and said it made a big diffrence. He did it when they didnt make an aftermarket intake manifold and then when skunk2 came out with one he bought it. After installing it he said there wasnt much of a diffrence in the two. So im guessing doing that would cause it to act more like a race manifold.

 

Sorry... I didnt read all the way to the bottom before posting.

 

So what should or could it be hooked up to for the intake runner to work correctly? And since its a stage 2 intake manifold-97 does that mean I got a 97 h22a?

 

Just that black vacuum box under the intake manifold. To check and see if its working or not just watch the diaphram while someone else turns the key on. If nothing happens than its not hooked up. If it closes then it should be opperating correctly. If you had a f22 vtec then yours should work. If you had the regular f22 than i dont know if that one had the duel manifold or not.

Mine on my h22a isnt hooked up and doesnt work. BUT my friend with a 97 accord h22a does work. I can wax him any day of the week. But he kept his F22 tranny and i chose to go with the h22 tranny. So i dont know if that has any thing to do with it or not. My point is i dont really notice that big of a power diffrence with it being open all the time. But then again it has never worked so i dont know if there even would be that big of a diffrence.