I have a 2000 honda civic si did a b20 swap, my car will not idle right, it will idle ok when I take the top hose off the fuel pressure regulater but I hook it up it dies and will not idle but when the hose is off it will miss fire a couple of times then runs fine with the hose off, will a fuel regulater go bad? if so how will it run? I got a b&m regulator.