1dayiwill
+1y
with the tube plugged the egr shouldnt work properly. on that thread i linked, im still trying to figure out any negative effects of taking all the egr stuff off. so far i havent found any. try reading through that thread. the 3 hoses that go to the black housing on top of the carb plug in to reed valves btw, just wanted to mention that because the term is used in that thread a few times.