3800 What is the Black box in the fuel pump?

[98 TGP TOY]

Hello all, I am putting on a new fuel level sensor in my moms 2000 SSEI bonne. The new sensor doesnt include this black box. Did I get the wrong sensor by mistake? What exactly does that black box do? Can I hook the sensor I have up without problems? Any help is appreciated. Just need to know if that black box is important or not. Thanks.

Mike

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[2000gtp]

i dont beleive its a problem.. i just did a walbro pump on my gp and didnt do anything to the black box... but i did unplug the level sensor.... so i dont think its anything to worry about