Alexander the o.k is back Posted September 7, 2017 Share Posted September 7, 2017 On the end of the egr rail, going toward the firewall. It appears to attach to the valve cover which has a nipple which is covered. Took the cover off and attached it and RPMS went to 250 from 750, ran rough. Runs perfect without it connected, (for years) so I plugged the end of it. The plug in the end is pointing to the supposed connection point. Any ideas what it is? Or does? Quote Link to comment Share on other sites More sharing options...
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