Sorry if this isn't the right section.

I looked around a little bit on a other site about this question, but figured I might as well post it here and see if anyone knows the answer. I'm ordering a fuel cell for my truck this week or next most likely from Metal worx inc. Probably going to be 34x13x13 and it'll use my stock pump & sending unit. They want me to ship my fuel pump so they can make adapter plates for it, but I was looking at my tank and noticed this


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It Tee's into a small line coming from the fuel pump and goes up to the filler neck. I'm guessing a vent line. Should I remove that too and send it or just use one vent line from the fuel Pump? I'm in cali and this will be my first year for emissions. The truck is all stock and not really planning on a tune for at least a half year or so. Would it hurt the truck if I just leave that out of the fuel cell? its an 06 5.3l crew cab.

 

I thinks that's your return line.. maybe wrong all the tank I have done was one unit..

 

Thanks for the reply, From what I've read its for the evap. It goes up into the stock filler neck. I'm hoping some cali guys with cells will respond and explain what they done with theres. I heard it wont pass emissions if I cap it.