ADDED PICS further down to try to explain my rambling


Ok.

this is a theory question:

I have a harness, the harness is a "dead end" harness, meaning that all wires terminate here (ok ok, its for my resistor box install)

now, i need to extend four of the 12 or so wires that go to this harness beyond the harness....meaning they need to be extended to go to my resistor box.

i have chosen to simply create four wires with a spade/male fitting soldered onto the end of the wire, which i then plugged into the corresponding injector wires on the harness (Found through a continuity check).

does this create a problem? a user on here thinks that this will cause interference and that the four desired wires must first be REMOVED from the harness. does leaving them in the harness create a problem? thats my question. does the metal or the other wires in the harness create some sort of ciruit or all the wires that enter this harness seperate in their own pin/holes?

edit: to simplyfy things:


When you have multiple wires going into a harness....does power just flow rampid through the harness? or is the purpose of the harness to get power from one wire to cross a bridge to power a wire on the other side of the harness? Basically power is contained in each wire that goes into the harness, right? lets say i have a wire labled "OIL" and a wire labled "WATER" both going into a harness. once the two wires enter the harness (From the same side) will water come into contact with oil?

diagram:


WATER: -- -- -- -- --
Oil: =========
Harness []


so... its one harness not two...just didnt know how to draw it.

-- -- -- -- --[]
======= []


Now, both water and oil terminate at the harness. but lets say i wanted to extend water like so:

-- -- -- --[]-- -- -- -- --
===== []

by doing this...would oil touch water since they both enter the same harness?


lol....this is tough stuff



Modified by Mr. Vapor at 10:43 PM 4/27/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Vapor &raquo;</TD></TR><TR><TD CLASS="quote">would oil touch water since they both enter the same harness?</TD></TR></TABLE>

For the connector in question, yes. All of the wires that go to that connector are shorted together if I remember correctly. You will have to remove the injector wires and separate them from the rest of the wires terminating at that connector.

For future reference, you should make a distinction between harness and wire and connector. There are many wires in a harness, and they terminate at a connector. Just because the wires are in the same harness obviously does not mean they are shorted together. And not all connectors short all the wires together, like that one for the injectors does. This is a specific case.

 

Ok,

here lets try and explain this with pictures!

Ok pictured below is the "dead end" harness. Now, ive checked for continuity and ive found the four pins in the connector that coincide with my four injectors. my wires {the yellow ones} have a female end on them (ive pulled one out so you can see it). You can see i did not cut or splice any factory wires


The next picture shows the OTHER end of the wires i made. this end has a male fitting and will go into the resistor box connector that is also pictured in my hand. the red wire will then go back into the 'dead end' connector in any open hole as the original instructions state.


does anyone see this as a problem? checked for continuity this way: Put the female end of the plug into the connector, then put one end of the testor on the injector wire up by my injector clips, and the other end at male fitting and got positive tone on the volt-meter.

MY CONCERN IS THIS:
The connector that i have tapped into has about 10 wires going into it. i am using the four injector wires. Is each wire isolated and seperate from all the others that enter the connector, or do they all connect once they enter the connector through the metal? this is where i want to make sure its safe and that each wire is isolated so i dont fry my ECU cause its getting interference from other wires


Modified by Mr. Vapor at 10:42 PM 4/27/2005


Modified by Mr. Vapor at 10:44 PM 4/27/2005


Modified by Mr. Vapor at 10:44 PM 4/27/2005


Modified by Mr. Vapor at 10:46 PM 4/27/2005

 

Pics no worky...?

 

try now

 

Still no workie

 

theyworky for me but I don't know the answer

 

In the junction connector that has ~10 Yel/Blk wires going into it - does the cap contain the bus bars that short all the Yel/Blk wires together?

If the cap contains the bus bars and you don't have it connected, then how will the other 6 wires get battery voltage to power whatever circuits they are powering?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">does the cap contain the bus bars that short all the Yel/Blk wires together?</TD></TR></TABLE>

I think that's the thing, the cap is what shorts all those together. Just take the pins for the injectors out of the connector, you're halfway there. Then none of this will be an issue. All those wires must be shorted, without that cap they won't be. And if you start inventing ways to get them shorted while keeping the other four separate, you're just creating work for yourself.

 

by bus bars, i assume you mean the metal prongs on the cap? yea i figured that was the case. im trying to avoid cutting the wires because its so tight to work in. its underneath my intake manifold.

ok question, how do i remove the wires i need from the connector?

 

Get some needle nose pliers and carefully pull that white plastic retainer out of the connector. If you look closely in each of the pin wells, you'll see a plastic tab that holds it in. Get a needle, paper clip, etc and carefully pry the tab away from the pin, and give a tug on the wire, it should slide right out. I've seen all this with pictures somewhere, I don't remember where it was though.