I have 818 # 107. I replaced the gas tank with the new tank. The sensor and fuel pump for the original tank don’t fit the new tank. I went to my local junkyard and asked for the sensors out of a 2003 tank. When I got it home and then looked in the manual. The top of fuel pump in all the photos in the manual and on the forum show 3 tubes. There seems to be a disagreement about what each one does. My fuel pump sensor has only 2 tubes. What did the junkyard give me?

I am also confused about venting. There are so many options on the forum.