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Old 08-26-2011, 06:20 AM   #10
nismolvr
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Join Date: Aug 2006
Location: Modesto,California
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s13

This guys problem is only at idle ! EGR operates only off idle and cruise. If it was stuck closed he'd show high NOX@ 25 mph but its NoT!If it was opening slightly ,not seating correctly all the way @ idle it would misfire throwing your a/f ratios off . I bet it's just your idle air control valve Or throttle valve and not your EGR.
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