im looking for the name of a part thats on the fuel rail..its on the opposite end of the FPR and sits on top of the hose that has fuel in it..it has a cap on it..dont have a camera which i know it'd be more helpful to you but i tried explaining it..thanks

 

white arrow points to what im talking about

 

back pressure pulse thingy. you dont need the plastic cap tho.
it lets fuel into the fuel rail.
fuel inlet nut?

 

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