If it was the EGR I don't think it will idle at all-all that dilution no way jose it'll idle erratically.
Lets try the idle air control valve clean it out/air bypassages and also the throttle plate-won't hurt to check the throttle position sensor closed and wide open throttle voltages-
Let me know when you need more help
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Wednesday, January 30th, 2008 AT 1:42 AM