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Right, the N18 alone controls the EGR flow. What I am saying is there is no intake throttle to help regulate the flow, like on PD VWs, or my Jeep Liberty CRD.
What I have learned since I wrote that is the EGR level is only checked at idle, so it is irrelevant what the MAF response to EGR is at any other engine condition. At the time I did not have enough output range in my circuit to make the ECU happy. My freeware VAG-COM has been invaluable.
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I'm not coasting, I'm shifting slowly.
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