Hey guys, so I have to pull my upper intake off and reinstall my fuel rails and injectors, because something is leaking. I am going to take each injector out and make sure the o ring's are good, then am going to reinstall, is there any sealant that helps the injectors from leaking near the bottom were they go into the lower intake. My question regarding where the injectors go into the fuel rails, is there something I can use to minimize the likelyhood of the injectors leaking from the rails. Like something other than just oil on the o rings? I just don't want to get everything back together, then having to rip it all apart again. I am also installing a new fuel pump. I am getting codes 91 and 41 which I realize could be related to O2 sensors, but I want to get rid of this fuel leak which could be causing a lean condition, because of fluctuating fuel pressure. I also didn't have a vacuum line hooked up to the fuel pressure regulator, not sure if that would cause any issues. Any advice for how I can do this right, not the first but the second time would be great! Thanks guys!