Right, so I've been working on my Intake Manifold by giving it a good clean-up, along with the upper intake manifold and throttle body. Theres something thats been bothering me, most likely its related to the IAC. The only thing I could find searching is the Tuner Tube... But I have a feeling this ain't a tuner tube.
What in the world is that metal pipe? It is actually necessary to have it? ( Although I do think it is, seems to work along with the IAT. )
its the egr riser. it makes the exhaust gasses go higher in the plenum so they dont just get sucked into #'s 2 and 3. since they are higher, there's a better chance for even distribution.
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So without it it would mean that the air sucked in wouldn't be able to distribute itself evenly beween #2 and #3? Alright, at least I finally know what it is.
Thanks.
YES he is right. pay attn when reinstalling (I put it in backwards once LOL). Mine was quite dirty too, since im in the military and have access to one, i used a 5.56mm Rifle Bore wire brush.
2006 Honda Civic EX Sedan AT-Galaxy Grey Metallic Pearl, 37,000 miles,Loaded with everything except Leather and Nav, Tint-5% rear, 20% front, Calipers painted Subaru WR Blue, Ipod Integration, XenonDepot 4300K HID Conversion kit, Debadged, Optima Red-Top, No performance mods because its an auto, and its under warranty.
