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Can someone tell me what I am missing here?

   
Old 03-07-2008, 07:58 PM
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Can someone tell me what I am missing here?
I can't figure out what mounts to the manifold where the two plates are blocking the 4 holes in this photo. And how important is getting that part? (Should these ports be blocked off?) Thank you
Attached Thumbnails Can someone tell me what I am missing here?-manifold1.jpg  
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Old 03-07-2008, 08:06 PM
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it's an egr thingy. On mine it has a tube that runs all the way across. Then a tube from there goes back into the intake on the other side.
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Old 03-08-2008, 03:13 AM
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i think they run to the egr valve, not really sure. my 4runner didn't have them, but my 89 truck does.
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Old 03-08-2008, 05:43 AM
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Those are block off plates for air injection, some trucks had air injection and some didn`t.
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Old 03-08-2008, 10:17 PM
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its not for the egr, its for air injection or something like that, i think it was just in California and other emission controlled states.
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Old 03-08-2008, 10:23 PM
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i dont think that it is needed i think when you buy a header it eliminates that stuff any ways, so u should be fine!
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Old 03-09-2008, 07:59 AM
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It is only for emissions. I have all that crap on my 86 2wd and i wont it off.
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