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EGR - why only from one cylinder?

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Old 05-14-2012, 10:32 PM
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EGR - why only from one cylinder?
i was working on the 00vi today and after seeing the egr and aftermarket headers for the vq30 i noticed that the egr only reaches to cyl 3...? is it because it in the back and between 2 other cyls therefore making it the hottest and more prone to nox emissions?

why not cyl 4 as well or all cylinders for that matter? doesn't everyone of them get hot enough to produce nox?
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Old 05-15-2012, 06:59 AM
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The EGR is pulling exhaust gasses FROM #3, and putting it IN the intake. ALL the cylinders then get the exhaust gasses via the intake plenum.
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