How to replace Refueling Control Valve on my 2001 altima

What is your question?

I need to replace the refueling control valve on my 2001 altima as the signal port from the filler neck vapor line is broken. The car runs fine with no codes, but am not sure if this can cause problems. This is a 3 port round plastic valve that sits under the car on top of the gas tank in a cavity in the rear of tank. I need to know how to get to it to replace it, is there an easier way or do I need to drop the tank to replace.

What makes this problem better or worse?

NA

How long has your 2001 Nissan Altima had this problem?

NA