How To : Direct fuel pump power wire

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Old Sep 26, 2012 | 10:53 PM
  #1  
Vagitarian's Avatar
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Default How To : Direct fuel pump power wire

Im surprised I couldnt find any info on this in the FAQ. Alot of guys have the walbro 255 pump in there civic/crx but I cant find any thread or talk on how to direct wire your fuel pump, with better gauge power wire and ground etc.

I am about to install a 255HP pump and am unsure about the installation and how I should go about hard wiring this pump to get the most out of it voltage/power/flow wise.

Any help with pics or info spefici to the EF chassis would be greatly appreciated. Im no wiring master and dont really understand a relay, but Id love to do this install the right way and never have any fuel pump wiring problems

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Old Sep 27, 2012 | 05:17 AM
  #2  
v4lu3s's Avatar
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From: Conroe, TX
Default Re: How To : Direct fuel pump power wire

i havent seen a how to in teh FAQ, but i recently did a relay for my walbro 255 hp (which has been running for 15 months just fine on factory wiring).
https://www.google.com/search?q=spdt...w=1536&bih=860
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Old Sep 27, 2012 | 10:20 AM
  #3  
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Default Re: How To : Direct fuel pump power wire

I know they run fine on factory wiring, ive done it with success. But this time I am going for much more hp, and want to maximize the power and supply to the pump
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Old Sep 28, 2012 | 01:15 AM
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swordofdoom's Avatar
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From: Lincoln, WTF, USA
Default Re: How To : Direct fuel pump power wire

Easy....cut the yellow and black wire Pin # 3 coming from the Main EFI relay going to the fuel pump and wire it directly to your battery. Although I do recommend a toggle switch and a inline fuse 10A -15A or whatever your fuel pump is rated at (x 1.5 ).

But really? This makes no difference it's getting direct power from your battery. I would actually connect a capacitor with the fuel pump just to make it work better.....
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Old Sep 28, 2012 | 10:57 AM
  #5  
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Default Re: How To : Direct fuel pump power wire

I dont quite understand that, but the point of this is to bypass the very small oem wiring and connection points, and give it a straight run of thicker gauge wire
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Old Sep 28, 2012 | 04:15 PM
  #6  
EF1.8T's Avatar
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From: Houston, Tx
Default Re: How To : Direct fuel pump power wire

http://www.xenocron.com/install/FuelPumpRelay.htm

Maybe this helps
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Old Sep 28, 2012 | 09:42 PM
  #7  
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Default Re: How To : Direct fuel pump power wire

thanks alot for that link buddy
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