I have no idea wtf this stupid *** block it. It used it used to have a gauge but I screwed it off because its broken. But it's connect to a hose that leads to the fuel rail and the intake manifold. It's throwing my check engine and it spews gas everywhere!

 

What? Pics? You talking about fuel spray out of the hole for the gauge?did you block it off?

 

I think it's the fuel pressure regulator. So I'm just gonna get a new one