I finished up my egr delete and oil cooler replacement today, got everything back together and noticed 1 open barb fitting on the passenger side of the intake manifold, it's a smaller barb fitting behind the one that goes to the coolant bottle. Anyone have any ideas? Also, without that connected, I purged the fuel system and attempted to start the truck, it half turned over 3 times but just won't start, I have fuel to the upper fuel filter. Any ideas on this. Thanks in advance, working off my phone, don't have the patience to try to search for this.