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Rewire fuel pump (relay getting to hot)

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Old 10-31-2013, 06:38 PM
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Default Rewire fuel pump (relay getting to hot)

hi guys, Yesterday I rewire my walbro with a 30amp relay using 12ga wire.
The pump it's working excellent and the car feels awesome but i'm having a issue with the relay getting excessive hot. All is new and the wires are crimped and then solder.

This can be a Ground issue? I just put the ground to the seatbelt bolt just clean the area not grinding or sanded.
Old 10-31-2013, 07:08 PM
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Default Re: Rewire fuel pump (relay getting to hot)

Do both the ga wire match?
Old 10-31-2013, 07:17 PM
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Default Re: Rewire fuel pump (relay getting to hot)

I don't understand!!

You mean if all the wires are the same size?

If is this then YES all the wiring it's 12wga.
Old 10-31-2013, 07:22 PM
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Originally Posted by carlos8
I don't understand!!

You mean if all the wires are the same size?

If is this then YES all the wiring it's 12wga.
Could be a bad wire. Or old wire
Old 10-31-2013, 07:25 PM
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Could be bad wire or old wire bro
Old 10-31-2013, 07:31 PM
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Default Re: Rewire fuel pump (relay getting to hot)

All is new and the wires are crimped and then solder.
Old 10-31-2013, 07:35 PM
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Default Re: Rewire fuel pump (relay getting to hot)

Idk man u may want to try to file down a lil where u grounded it just to get bare metal showing. Not saying this is ur fix but it's possible it will at least help.
Old 10-31-2013, 07:37 PM
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Lol did you change the battery?
Old 10-31-2013, 07:46 PM
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Default Re: Rewire fuel pump (relay getting to hot)

Why did you change to a 30A main relay? Why are you using an aftermarket fuel pump?
Old 10-31-2013, 08:11 PM
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Default Re: Rewire fuel pump (relay getting to hot)

I'm running a ls vtec turbo @ 17psi/ 393whp 279tq. and I was having problems with the pump voltage with some accessories turned on.

And the guys from Forced Induction recommend this.

Now the problem gone, but after 15 minutes I touched the relay and it was hot more than normally.
Old 10-31-2013, 08:27 PM
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Default Re: Rewire fuel pump (relay getting to hot)

Main relays get hot. That's normal.
Old 10-31-2013, 08:32 PM
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Default Re: Rewire fuel pump (relay getting to hot)

thanks!!! I go to use it tomorrow to work and see how it behaves.
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