HowTo: S14 Walbro fuel pump install

Basic tech questions such as future setups, different turbo kits, car diagnosis, etc

Postby SpoolTool » Sun Nov 09, 2008 12:52 am

Anybody know how to do the wiring? That would be helpful in this thread
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Postby importdude » Sun Nov 09, 2008 1:14 am

its only 2 wires

use the supplied crimps
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Postby SpoolTool » Mon Nov 10, 2008 6:37 am

importdude wrote:its only 2 wires

use the supplied crimps


I have a walboro installed on my car and theres 4 wires going to a relay. I bought the car with it installed and I was looking for a more simply way to wire it in as it is now hard wired to a switch..

Knowing the number of wires doesn't help much if you don't know where they go :roll:

I'm gonna re-wire mine soon (busy at school) So I'll post how that goes maybe with some pictures if I get it working properly.
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Postby EstoMax » Tue Nov 11, 2008 1:22 pm

maybe your car has the walbro 'hard-wired' in. If there is a relay the stock fuel pump power lines might be triggering the relay, which get power straight from the battery to the fuel pump.

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Postby SpoolTool » Thu Nov 13, 2008 12:03 pm

EstoMax wrote:maybe your car has the walbro 'hard-wired' in. If there is a relay the stock fuel pump power lines might be triggering the relay, which get power straight from the battery to the fuel pump.

Marko


With that being said how is everyone else wiring their units in?

If there are 2 main wires, one for power and ground, where should I splice the power wire so that it gets 12 volts when the key is on?
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Postby EstoMax » Tue Nov 18, 2008 3:57 pm

afaik most of us have it wired conventionally.

i don't know what you have there.. take pictures or something before i can advise you further. If you have a relay, then the stock wires coming from the front of the car would power the relay trigger and there would b a wire from the battery (with an inline fuse) going to the relay and another one going to the fuel pump, and from the fuel pump a wire going to ground.

MArko

make a new thread if ur confused, most people dont check stickied threads.
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Postby Chay G. » Tue Dec 30, 2008 10:00 am

why not using an inline walbro?
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Postby Xren17 » Thu Feb 26, 2009 1:03 am

Hey,
Just wanted say thanks for the write up. It made life a bit easier on me.

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Postby el_mata » Sun Mar 15, 2009 9:51 pm

i just did mine... but how is it that the cables from the walbro might cause a spark and explode. I think of it every time I start the car!
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Postby Xren17 » Mon Mar 16, 2009 7:54 am

Haha. I had the same question but it'll be fine as long as you have the connectors crimped and insulated. The reasoning being that gasoline is a poor conductor therefore a good insulator. This means that current does not travel well through it so there's no worry of a spark unless the power line comes into direct contact to a ground.

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Postby EstoMax » Sun May 03, 2009 7:40 pm

also keep in mind electricity takes the path of least resistance.. so as long as there is some wire connecting the right wires and their not shorting with each other you won't have any problems.

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Postby godchsr » Mon Nov 16, 2009 8:32 am

Excellent write up! I will be doing this very soon! I will try and snap a few pics along the way as well.
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Postby shift_s14 » Wed Apr 28, 2010 11:15 am

thanks for this post, it helps a lot
i just remove it yesterday, i just strugle a little bit to insert back because i don't have enough light, but i'll finish by today

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Postby Caveit77777 » Mon May 10, 2010 9:53 pm

I don't know if I'm really asking this but whats the l/hr difference on the stock pump compared to the walbro 255?
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Postby 8-bit » Wed Jun 23, 2010 6:46 pm

thanks for the writeup.. I'm glad to hear that the long sock is in my current tank and that I can use it on the walbro. I ended up ordering an S13 pump for my S14 because people don't seem to have S14 stuff and I was starting to get a little wary about not having a sock that goes long enough.

looks easy cheesy like the S13 was (back when i had one).
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Postby will.yum » Thu Jan 27, 2011 1:07 am

Good write up man def helped a couple days ago but was confused on how the pumps brackets were put back in but figured it out quick and smacked myself lol.
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Postby coachbag01 » Wed Mar 30, 2011 4:16 am

Yes - A couple other forums that I frequent do it that way and it works great...
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Postby DeatschWerks » Fri Aug 19, 2011 9:18 am

Just wanted to let you guys/gals know that this install guide will work for installing our DW301 fuel pump, as well.
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Postby project-c2 » Sat Feb 25, 2012 7:53 pm

I followed this to the T and when I was done, I turned the key on and it just sounds like the pump is free wheeling. I cranked it and no start. ****. I take it back out and noticed the black and red wires are in the wrong pins. The pump has markings and the black wire was going to the (+) side. FACK. So I recrimp the wires red going to black and red/green going to red. Then it worked. Just a warning to follow the pump markings and not the wire color. Hope this helps people in the future. I did the install with the tank out cause I was swapping then ended up doing it on the car, cause the tank was installed.
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Postby YadPwns » Sat Mar 31, 2012 2:51 pm

Awesome write up!! THANK YOU!!! Was a breeze to install my walbro today thanks to this!!
Cheers!!!! :D
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Postby yvang07 » Sat Feb 16, 2013 12:16 pm

Bookmark'd I know I'm going to be referencing when I do mine also, it's been in storage and I haven't had much time to work on it, but we'll get there eventually.
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Re: HowTo: S14 Walbro fuel pump install

Postby sm240sx » Thu Aug 08, 2013 7:17 pm

very useful information!
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Re: HowTo: S14 Walbro fuel pump install

Postby dls2200 » Tue Oct 22, 2013 12:13 pm

Awesome cant wait to get started on mine!
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Re: HowTo: S14 Walbro fuel pump install

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