How do you properly remove the plastic sending and return lines from a fuel rail? It wont budge no matter how hard I pull and it's the only thing as of now inhibiting me from removing my lower intake.

Thanks..

 

you need a special tool to get the fittings apart and i spray them with pb blaster first that stuff is awesome it makes life so much easyer

 

You need a set of fuel line tools, they are small circular things that go around the line and slip under the lip of the connector to release it, but even with those it will be A JOB. Apply some lubricant to the connector, and while holding the tool in the connector with 1 hand grab the other side of the line with the other hand and first push together before pulling apart. There are a couple O-rings on the fuel line for a tight seal so you will have to work the fitting in and out a few times(OK maybe a lot more than a few) before it will let go. Everybody struggles with these things so don't loose your patience.