Can anyone help me with my wiring problems?????Please Help!

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white90esex
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Hi, I have been trying to do some wiring since I got my SR. I had it all spliced by wiring specialties (dont go through them) and they didnt splice in my white connector for the gauges and stuff.

I have to do it my self and everyone just says " connect the matching colors" Its not that easy...

Heres what were looking at.

From the Stock KA connector there are the following wires from left to right.-Yellow / white-Yellow / green-white / blue-teal / red-Solid Black-Teal / black-Solid Blue-Yellow / Red

The wires coming from my SR ECU are the following from left to right-Solid orage-Yellow / green-Blue / Green-Blue / black-yello / red- Solid Black

Wires coming out of my harness that are stray are... -green / white-green / black-white / blue-Solid Green

It looks like someone has splice into it and has left those ones out and is only using the others.

Somehow I gotta splice in my KA Plug to the SR harness.

CAN ANYONE HELP!!!???

I have pics but my computer is a piece of **** and its freezing up. I will post pics later tonight if possible.

PLEASE HELP!!
Modified by white90esex at 3:42 AM 8/31/2006


white90esex
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By the way, when it says COLOR / Color

The first color is the color of wire and the second color is the stripes color.

Any help would be greatly appreciated.

Kenrik
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It's for the dash harness right?? Color match the wires... most of the wires are not used.

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Morph
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Y didnt you just send it back and tell them to do the job you paid them for?

white90esex
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Well, Once you pay for someone to do something, then you assume that everything is correctly done, you hook it up.

Every connector is hooked up now. It would just be a waste of my time to take everything back out, package it in a box, wait 3-5 days for them to recieve it. Wait another 1-5 days for them to fix it, and another 3-5 to get it back.

So basically I only connect,

-Solid black to solid black-Yelow/ green to yellow/ green

Those are the only ones that have matching colors.

Please, someone had to of done this wiring them selfs

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SpeedRacer1
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There should be about 5 wires that go together. Off the top my head they should be:Tach - Yellow/RedSpeed Limiter - Yellow/GreenWater Temp - Blue/BlackStart Signal - Orange

Anything else left on the harness's is AC or Consult wiring.

The dash wiring is about a 2 out of 10 difficulty so dont worry about extra wires.

ILikeMy240sx
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When I did a S13 wiring.. all the colors matched... sooo are you sure you are looking at the correct plug?

Anyways, here are the function of each wire.

-Solid orage (start signal)-Yellow / green (speedo)-Blue / Green (AC signal)-Blue / black (Water Temp)-yello / red( Tach)- Solid Black (Ground)

The color of wires on the KA plug matched the SR harness color when I did it.

What year car do you have? You can consult the FSM and its wiring diagram and figure out what color is each function I listed and match

white90esex
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There is the pic.

The only things that match up are

-yellow/ red-yellow/ green-solid black

There are no other matching couples.

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SpeedRacer1
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Where did you get that plug from? That looks exactly like the plug from an SR engine harness that runs to an auto transmission computer. No matter what, that is definately not the KA dash plug. You NEED the orange wire to cold start the car and there should be a black/blue wire for water temp.

Kenrik
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That's not a KA harness plug...

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SpeedRacer1
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Was your car an automatic? Or your SR an auto?

rkreimer10
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go to heavythrottle.com and go under sr faq. thats where i got info for my whole swap(wiring coolant lines vacum lines EVERYHTING should be in their about what your looking for.) hope this helps.

white90esex
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My car was an Auto Single cam. I swapped in a S13 Black top 5 speed.

white90esex
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So I looked at heavy throttle, That connector they have looks different from mine.... Im stumped.

Do I need the gauge cluster out of a Twin Cam KA? If thats the case would it be easier to just get the cluster for an SR cause then I got a tach that shows redline and whatnot and it would "in theory" plug right in.

Nothing ever seems to work right for me...... Man, this SR swap just keeps bringing up more problems as I go.

Oh yeah, when I do my vacuum line for my waste gate do I run it before or after the turbo... After right?

Also there is a hose from my vavle cover. I go to my catch can then before the turbo right?

Any help is appreciated, thats everybody for your help!!!

white90esex
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Well its about 5am and I was stairing at the pictures and here is what I came up with



Looks to me though like there is a purple one and a gray one, and some other color ones too. It seems like there are WWWWAAAYYYY too many wires down there.

The white w/ blue stripe connects to the white w/ blue stripped one comeing of the SR connector. There is no wiring actually going to the ECU that is that color.

IMMM SSSSOOOO CONFUSED

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SpeedRacer1
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Okay try to comprehend this, that plug that came from the KA harness that YOU think is the dash wiring harness is not the right plug. That is actually a plug that is only on automatic cars. It runs to an auto computer above the brake pedal, and has NOTHING to do with the gauge cluster wiring.

The gauge cluster/dash wiring plug you need is hidden up on the inside of the dash. It matches the up with the plug on your engine harness. From what I can see wiring specialties did the wiring right, and I have seen hundreds of harness's. Look for another connector that is bolted onto a bracket up in the dash area.

You need a DOHC tachometer, it doesnt matter if it comes from an SR gauge cluster or a KA24DE gauge cluster. The SR reads the right redline. You just need the DOHC tach otherwise you wont see your RPM's.

For your vacuum lines, the normal way of running the wastegate line is wastegate to port after the turbo. So run it anywhere on the compressor outlet, hot pipe, or cold pipe.

There should be something like 12 unused wires if you decide not to wire up AC, and the Nissan Consult port. Here are the wires I didnt use on the KA side of the dash plug...

rkreimer10
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Car: s13 240sx with sr20det

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are these the wires that are after the blue(main ecu clip)? if so you have to remove your glove box to see where it plugs in. its all the way on the right side of the dash infront of the heater core. sounds like what everyone else is saying you have the wrong clip. i will take pics but i wont get to post them till sat or sunday. if you wana talk to me please give me a call and ill try to walk you through it over the phone. 262-902-5109. i work 2pm-10pm cst. so call me and leave me a message or call after 10pm. hope i can help.

white90esex
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Allright, So your telling me there is the plug for the auto transmission stuff under the dash and then there is another plug (the plug I need). When I was under there all I saw was the one plug. Ill go search some more now.

THANkS!

rkreimer10
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ok so i looked at your pics in more detail. the white plug thats on the end of the sr harness just needs to be pluged in. if you had the harness serviced then prolly repinned the clip to just plug in and work fine. it looks like everything is done right. as far as your harness is concerned just find the clip to plug it in and plug it in.

single cam tach wont work with sr so you need a tach from sr or kade cluster. or just buy a after market tach.

lmk know how things go.

white90esex
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Ive never delt with all this wiring before. Our old 510 had like 10 wires total so Im not really used to the wiring stuff.

I also never pulled the gauge cluster before. If I get an SR one will it plug right into my harness I have now or will I have to mod stuff AGAIN?

The only difference between the SR and KA is the redline mark right.

I found a few for sale one ebay and Ide really like the SR cluster cause then it would show me the 7500 redline.

Also another question, can I plug a digital gauge cluster in?

white90esex
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I figure since you guys seem to know what your talking about I can ask you just accouple questions.

1. When wiring for my 5 speed, all I do is wire the Black w/ yellow stripe and the white one together and thats it? There are tons of wires coming off the transmission, do they not go anywere?

2. Will the Twin cam KA or SR gauge cluster plug DIRECTLY into my car?

3. I did a 5 speed swp. My clutch pedal will not stay out, it is allways sprung twords the firewall. Is that normal untill you fill your resivour?

4. I have seen a picture of a clutch pedal on another car and it had two different switchs. Mine only has 1, will I need to locate the other plug and if so were do they plug in at?

5. I also have to extend the power steering temp? wires. Does the SR plug match, but just doesnt reach?

Again, thanks for your help peeps!!!!

Ive made quite a bit of progress today and I learned some valueable stuff.

THANkS!
Modified by white90esex at 1:08 PM 8/31/2006

deathBooster
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I guess we all went thru the same...

I tried to do my own wiring but once i started i realized it was a terrible pain..

I just send my harness to phas2motortrend.com and they did it for me for 100 and all the connectors were nicely labeled.. that made connecting the cables easier tooo..


rkreimer10
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Car: s13 240sx with sr20det

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ok her it is

1) yes those wires are corect you have to do this to bypass the starter interlock. as long as your speed sensor is conected the other clips from the transmission dont really matter. their should be clip to hook them up from the lower wire harness

2) yes it will plug directly in and should work.

3)fill your reivior DO NOT play with the clutch with no fluid in the master cylinder as you can damage it. when you master cylinder is full make sure you bleed the clutch system thoroughly.

4) i believe if you only have the one switch it will start without the clutch being engauged. always press the clutch in when starting or make sure your not in gear.

5) yes you have to extend your power steering plug to reach the other side of the engine bay on 89-90 240's. the other single wire is for the a/c.You have to use the KA compressor wire from over by the MAF NOT the SR harness one. this only applies if you are installing the a/c compressor.

did you get that clip issue straightened out? hope so. i believe digital cluster require a new harness behind the dash. (someone corect me if im wrong)

and lastly everyone who has performed this swap themselves for the first time has gone through the majority of these problems. wiring is tricky expecially if you 've never done it before. just keep pluging away at her and you'll get her running. saturday i will be workign on some wiring for my car and will get some pics of the plug that you are looking for in the dash. hope all this info helps. if you have any questions just keep posting.

white90esex
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Oh yeah, that reminds me. I actually found the right plug that was under my dash so we are good with that one.

I havent been playing with the clutch pedal, just that if you pull it out it will snap back down to the floor with barely touching it. I put fluid in it just havnt bled the system yet.

Ill get pics of any other problems I have.

Thanks again

white90esex
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hey again,

Today I located a 5 speed crossmember and I was sooooooooo excited. I was gonna bolt the drive shaft in but that didnt work so good.

I asked allover the place and people said that you can use the S14 drive shaft. Thinking to my self that I have a 95 SE on the side of my house, I went and snatched up the 5 speed drive shaft.

It doesnt fit, its too long.

Anyways, I am gonna go back to that J-YArd I got the X-Member from and snatch up the drive shaft.

I think I got everything straightened out now.

Oh yeah, one last thing. People say to get teh 5 speed trim piece that goes around the shifter. I dont see a difference between the two.

Man, After this is all said and done im going to make a thread that is for EVERYTHING you need before you do the swap. Everyone said that its sooo easy and it bolts right in with ease.... yeah right!

Ive had to order SSSSSOOOO much stuff that was never even mentioned when I looked into the swap.

Thanks for your help though man, youve been a big help!

rkreimer10
Posts: 228
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Car: s13 240sx with sr20det

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about the driveshaft. Remove the dust collar from SR transmission. The black collar is located on the end of the transmission where the drive shaft meets the transmission. Just take a piece of wood and a hammer and knock it off. You will not be reusing it. In its place you have to insert the KA dust collar. Use a flat piece of wood and tap it on. It is tight but will go on with some patience. well hopefully she starts right up for you. let us all know what happens

white90esex
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Im gonna go to a junk yard tommarow (saturday) and grab a drive shaft. I should also try to get that dust shield thing? I was told that the KA and SR trannys were the same just with a different bellhousing.


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