Nelson Pump harness wiring.
#1
Finally installing my Walbro pump tonight, I don't have the wiring instructions from Allen. Don't think I ever had any to be truthfull. I know its basic wiring but what do circuit do you have to tie into for both pumps to start when you turn the ignition on?
I did a search and this and there is some information but not much of it is usefull.
I plan on doing a thread after I'm done for anyone who will have the same questions as I.
Fittings needed.
Length of Braided Hose needed.
Where to mount.
Wiring.
The install is no-where as easy on a SCSB 4x4 as a 2wd or ECSB truck. Practically no room for the pump, hoses, and fittings, it's going to be tight.
I'll post a pic of the harness in a few minutes.
I did a search and this and there is some information but not much of it is usefull.
I plan on doing a thread after I'm done for anyone who will have the same questions as I.
Fittings needed.
Length of Braided Hose needed.
Where to mount.
Wiring.
The install is no-where as easy on a SCSB 4x4 as a 2wd or ECSB truck. Practically no room for the pump, hoses, and fittings, it's going to be tight.
I'll post a pic of the harness in a few minutes.
#3
When I installed the pump nd harness from Nelson I used the install instructions from magnacharger for tapping into the ignition source for their inline pump. Might find someone with their radix instructions they should be able to hook you up. If all else fails Ill go pop off the fuse box under the hood and take apic for you.
#5
Ok, on that relay, test which two click it over, and which two are constant. I think that the orange is constant due to the fact that it's hooked up to a fuse(that's what it is right?)*That is unless the red is shorter and the orange is long enough to make it to your fuel filter.. That plugs into whichever positive terminal has +12v when the truck is on. I would assume that the Black is ground which you can ground to any body post such as the one on the firewall. The green wire (if it's the switch for the relay) connects to the grey wire in your fusebox. That's the fuel pump wire and you can follow it down to the framerail and see that it runs to the rear of the truck if it's the correct one. Test it with a test light. Then clamp a T-tap to it and connect a blade terminal to the green wire to hook into it. Then run your positive towards the rear of the truck. Since your truck is an 02, i would expect it to still have the fuel filter on the framerail. The radix kit comes w/ pre bent tubing to make it look through the filter, but i dont know if you have all that. Let me know if you need pictures or have any more questions.
#6
Thanks for the replies all!
blue 01 sent me this link too.
https://www.performancetrucks.net/fo...d.php?t=369216
blue 01 sent me this link too.
https://www.performancetrucks.net/fo...d.php?t=369216
#7
Hey man, I just ordered a bunch of the earl hoses and fittings to install my inline walbro on the rail, but just realized the thread I was going to use for my install was for an extra cab and I have no room in my single cab to mount this sob. where did you mount yours in relation to your fuel filter and do you have pics?
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#9
Finally installing my Walbro pump tonight, I don't have the wiring instructions from Allen. Don't think I ever had any to be truthfull. I know its basic wiring but what do circuit do you have to tie into for both pumps to start when you turn the ignition on?
I did a search and this and there is some information but not much of it is usefull.
I plan on doing a thread after I'm done for anyone who will have the same questions as I.
Fittings needed.
Length of Braided Hose needed.
Where to mount.
Wiring.
The install is no-where as easy on a SCSB 4x4 as a 2wd or ECSB truck. Practically no room for the pump, hoses, and fittings, it's going to be tight.
I'll post a pic of the harness in a few minutes.
I did a search and this and there is some information but not much of it is usefull.
I plan on doing a thread after I'm done for anyone who will have the same questions as I.
Fittings needed.
Length of Braided Hose needed.
Where to mount.
Wiring.
The install is no-where as easy on a SCSB 4x4 as a 2wd or ECSB truck. Practically no room for the pump, hoses, and fittings, it's going to be tight.
I'll post a pic of the harness in a few minutes.
#10
i didnt use the harness from nelson but i got thhe wire i tapped into on my frame rail next too the pump on the out side of frame .it was the gray wire if you chase the wires visually from tank out too the frame rail youlle see the big wrapped harness its in there it worked for me ,and yes it works with ignition.good luck hope it helps.



