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Discussion Starter #1
I've purchased a new fuel pump bracket from Toyota (my old one was rusted and leaked), and it has this black box on it with a blue wire comming out of it. The old one didnt have it, and had 2 wires in total - blue and black which both connected to the fuel pump. The new one has those 2 wires, plus another blue one comming out of the black box. I would assume that it connects to the ground on the fuel pump also (along with the other blue wire) but i want to be sure.
Can anyone please tell me where it goes?
Thanks a lot!


 

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i think it does the same job as the capacitor on the alternator, filters out unwanted noise from the fuel pump that could be heard through the sound system, but i could be wrong
 

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Discussion Starter #3
I was thinking that too, so it goes to the + on the fuel pump, right?
 

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Capacitators are normally placed on the phase (+) of the system. But somehow it indeed could serve that purpose...

Can you make a closeup pic of the black box so we can read the writing on it ? Makes it a bit easier to google for specs on the electric component. From there you'd be able to tell what its purpose would be.
 

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Discussion Starter #5
Stupid me, shouldve done that in the original post.

On the black box it says

/_\ (a triangle)
90980-04047
250/0.47 F.
 

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Discussion Starter #7
So it connects to the + on the fuel pump, correct?
Just wanna be sure.
Thanks!
 

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looks like its acting as a ground
 

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The F stands for Farad. Which more then often indicates some sort of capacitator. In this case it acts as a noisefilter as others have already suggested.
 

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C44 said:
The F stands for Farad. Which more then often indicates some sort of capacitator. In this case it acts as a noisefilter as others have already suggested.
what he said

<l><l>
 

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it smooths out any volatage ripple generated from the motor of the fuel pump thus reducing noise in the electrical system probly helps with a more consistant fuel flow as well as by preventing sudden voltage drops :)
 

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Do you recall how much that cost? :)

Mine is rusty on the outside as well.
 
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