OK if your having No spark, checked ecu, used a mulitmeter, i have a solution!

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
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blueballa
Posts: 224
Joined: Fri Dec 14, 2007 11:04 pm
Car: 97 kouki

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ok ok. im back my friends!! with a lot of info. please correct me if im wrong with any of this.. but im pretty sure im not. theses wires send signal to your ecu, coilpack, maf, etc.. etc.. etc. so this is one of the major parts of the harness. so if you checked everything out (used the search button).. then read on. if you havent, then dont. this should be your last resort. and if you post before researchin imma slap you. but dont be afraid to ask questions lol.

first off, you should have two sides, one side consisting on the sr harness and the other side that consists of the plug you chopped of from your stock harness. (if your wondering i used a redtop that replaced my sohc in my coupe)

ALSO!, ALL THESES WIRES ARE CONNECTED TO THE EXACT SAME ONE ON THE OTHER SIDE OF HARNESS. SOOO WHAT DOES THAT MEAN? that means, from the plug, you just match theses wires ive listed below with your sr20 harness and your set. there will be 4 wires you do not use at all. just leave them alone.

ok, from the larger connector (near the battery) you need to have the following wires connected:

red w/ grey dotblack w/ purple stripgreen w/ yelow stripyellow w/ green strip plus grey dotblack w/ white stripblue w/ green strip plus grey dot ( kinda hard to see the green strip so be carefull)black w/ yellow strip plus grey dot red w/ black strip plus grey dotorange/ grey dotblack w/ grey dot

ok this is the tricky part!! SO LISTEN UP!.

there are two thick wires left on the sr harness (thick black w/ purple strip and thick blue w/ red strip) and on the plug side there should only be a thick black w/ purple strip. what you do is combine the black w/ purple strip and blue w/ red strip from the sr harness and connect it to the single black with purple strip on the plug side.

there you go. heres some pictures.

red w/ grey dotblack w/ purple stripgreen w/ yelow stripyellow w/ green strip plus grey dotblack w/ white stripblue w/ green strip plus grey dot ( kinda hard to see the green strip so be carefull)black w/ yellow strip plus grey dot red w/ black strip plus grey dotorange/ grey dot & black w/ grey dotthick black w/ purple strip and thick blue w/ red strip

well i hope this helps everyone with there no spark or connection problems.

good luck and enjoy. oh btw, tell me how it does!!!


Modified by blueballa at 3:00 AM 1/15/2010


Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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very helpful thank you, i have a quick question tho.. they yellow/ green stripe grey dot on my lower harness goes into the connector and comes out the otherside of it but only a few inches, i do not see it go up the harness like ur showing, i dont have a camera to show u i apologize , but the yellow wire just isnt in the upper harness..is there another wire i should be looking for?

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blueballa
Posts: 224
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Car: 97 kouki

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lower harness? this is for the connector by the starter relay( main engine harness). I dont know where it goes after the plug, but if its not connected you definatly have a problem. pics would help a lot. try to get some and ill see where your at.

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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not able to get pics at the moment sry... the yellowwire grn stripe grey dot on my upper harness simply wasnt there(near the battery, grey plug) im not sure what happened so i took the harness out of the car to really look at it, and this is wat i found. ecu wiring is correct, but shortly just after the ecu plugs in there was a connector with foam around it( i have a redtop s13) and was confused on what it went to wen i installed the harness but didnt think nothing of it cuz there wasnt a place for it to plug in, but wen i went to look at it the yellow wire grn strip grey dot went to it and stopped. asfor my other missing wires. not sure but isnt that connector only on the s14 harness?? but couldnt i just depin the wires i need and extend them to where i need them??

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blueballa
Posts: 224
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Car: 97 kouki

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yellow green with dot wire, its there from your plug right? by the battery?

its also there from your ecu, but it has a connector and goes where?
Modified by blueballa at 5:15 PM 1/17/2010

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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from the ecu that wire goes to the connector and stops there 7-9 inches behind the ecu plug. and on the lower harness it goes into the grey connector.

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blueballa
Posts: 224
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Car: 97 kouki

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so your asking where it plugs into for the dash interface?

Mthompson240sx
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Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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nah, i jus want to know if i can cut the wires from the connector and extend them to the connector near the battery tray?

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blueballa
Posts: 224
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Car: 97 kouki

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dont cut the connector, just T it off the the plug by the battery.

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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sry for replying a week later, i go to school in tulsa for GM during the week and am home sometimes during the weekend. iv got the yellow wire wired up now and have one problem still... the black wit grey dot u have next to your orange wire(by the battery tray) ive used "search button"( seems to be everyones answer for alot of things) but is that wire coming out of the lower( ka) harness? i clipped the black wit grey dot off one of the three connectors u dont use (by battery tray) but cannot find a black wire on the lower harness side... and thanks for ur help all this time man

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blueballa
Posts: 224
Joined: Fri Dec 14, 2007 11:04 pm
Car: 97 kouki

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yeah no problem man,but yeah it IS on the ka harness. it should be on both sides of the plug. so if its not on your male connector, check your female one and see where it should connect. your probably just missing it from the male connector.

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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there isnt a terminal open for the black wire on the ka lower prt...also there isnt a spot for the black wire in the ka side of the connector.. or am i supposed to depin one so it can go in there?.. but i did see one next to and orange wire with a black stripe goin into what looked like a splice pack. is this perhaps the wire u used??? if so, what is that S/P used for? do i need it?
Modified by Mthompson240sx at 8:48 AM 1/24/2010

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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http://pictures.sprintpcs.com/...&wm=1 sry for the pic being so small but this is the lil splice pack connector that has the orange with blck stripe and blck wit grey dot, not sure what its used for... but thats the only black wire i find in that area , on the lower ka harness.http://pictures.sprintpcs.com/...&wm=1

and as for the connector i found behind the ecu with foam around it

http://pictures.sprintpcs.com/...&wm=1

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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anyone???

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blueballa
Posts: 224
Joined: Fri Dec 14, 2007 11:04 pm
Car: 97 kouki

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sorry bud. i got a cold and i havnt been around. but i should have asked you this a long time ago. are you using the plugs (male) from your ka? if not. thats your problem. your suppose to cut the ends off the ka harness (power supply) and match color with color. and yeah your pics are hella small lol.

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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yea i am using the plugs. all the wires match up except for the black wit grey dot. im trying to find a way to get the pics bigger, but could u atleast see the two wire connector that goes to nothing but itself?? im currently stuck 120 miles from the car at school,ice storm, so not able to get more pics, i just dont know why i cant find this one simple wire on the lower harness... but like i said im using the plugs andwires match up cept there isnt a black wire wit grey dot in either one of the connectors on the ka lower harness. besides the one going to that connector, there are a few black wit grey dot wires coming out of the lower harness but they all go to chassis ground right out of the harness (ka lower side) do i use one of these??. am i just not looking in the right place or what??? this car is killing me is that wire suppposed to be going into the two connectors (u use on the lower side) or am i supposed to cut it from a connector and pin it into the connectors im using?? i feel stupid for asking these ?'s cuz im a student technician and i can find a simple black wire... hope ya gettin to feelin better bro

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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sent you and email on your hotmail of the connector in the pic but blown up

Mthompson240sx
Posts: 20
Joined: Thu Aug 27, 2009 9:06 am
Car: 1991 nissan 240sx s13 ka24de

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bump

ssmokerjoe
Posts: 15
Joined: Sun Jan 27, 2008 5:11 pm
Car: 1992 nissan 240sx with jdm s14 lsd full 5 lug conversion lowered jic magic coils sr20det redtop

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i knw im probally reviveing a dead thread but thanks for the info it worked for me. i must have over looked that wire thanks again

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blueballa
Posts: 224
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Car: 97 kouki

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hey man, your welcome. its nice when ppl leave compliments.


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