2003 Chevy GMC trail blazer Envoy say EGR , internal you enter NA .
2012 Ram 5.7 states EGR you put NA there's no EGR but 2012 Ram 4.7 has an EGR
I have notice some vehicles have EGR valve, however ECS LABEL does not state it has EGR. Example Jaguars and Landrovers. Do you guy put pass for EGR valve even if ECS states no EGR?