Nissan Harness Connectors

[greenman100]

I want to roll my own engine harness, from scratch. My connectors are tired and worn out, and I'm running a Haltech.

There's a good thread here from the honda boys:

http://www.honda-tech.com/showthread.php?t=2154272&page=11

Does anyone know a list of connectors Nissan uses on the SR20?

Thanks!

[greenman100]

no one? :(

[Geno]

I've looked into it before, but it seemed easier at the time to just remove the blue ecu plug and add haltech ones (having Chris's harness with this already done helped too). Other than that, Nissan Japan sells individual plugs so I'd check the their FAST program if you have it.

[greenman100]

I have the FAST program, but just the US files right now - getting the JDM disks.

I'm not seeing individual connectors, though. Its all enginer harness, or "repair connectors" which are only good for radio and relays:

http://i53.tinypic.com/zvbkfl.png

Any insight?

[Matt93SE]

You can also buy replacement connectors for some of the engine stuff, but they're often not directly listed. some of them you're SOL though. for injectors, they sell a replacement injector harness for 300ZX that comes with 3 injector connectors. for the other 3 you have to buy a second one then cut and splice the wires into the old harness.

Since the injectors cross over between cars, you can use those for yours if you still run Nissan style injectors.

other stuff like that is available for other cars as well, but it's a black art of knowing what connector fits what and what is available from Nissan.

All I can really tell you is that you DON'T want to buy all of them new from Nissan. You'll be broke when you're done. (i.e. new engine harness for most Nissans is around $1200....)

[greenman100]

Well, that's annoying.

I guess I have two options:

1.) get a used harness, cut all the connectors off w/ a couple inches of pigtails, and do my own harness with Mil-Spec firewall connector and new wire/heatshrink.
2.) get a used harness, find new pins, use old connectors with new pins.

[Matt93SE]

yup.. those are all options..
http://www.oem-surplus.com/nwp/240sx.htm

[Epstein]

I deleted all of my old links, but you're looking for Sumitomo and Yazaki connectors. Those 2 companies might be related now. Actually, browsing the Yazaki catalog is like looking at the history of Nissan connectors.

Actually, here's Yazaki: http://connectors-catalog.sys.yzk.co.jp/english/2/02.html

58 series, W type
62 series, Z type

Here's Sumitomo's 91-series for the crazy F3/F4 S14 connector: http://www.seaps.com.sg/components/cpm_unsealed_91.htm

Connectors like the CAS and coilpacks are Sumitomo DL-series: http://www.seaps.com.sg/components/cpm_sealed_dl.htm

[greenman100]

Where do you guys learn all this stuff?! Especially you, Epstein!

[jmauld]

Any idea what the three plugs are for the ABS pump?

[greenman100]

Epstein - did you have a distributor you went through for pricing these out?

[greenman100]

The weather-proof kind in the engine bay are different series of Yazaki connector. GM's also use some Yazaki parts, but I can't find anything useful in their dealer connector kits. You can find the actual part numbers for everything on the Yazaki website, but they've only got 1 US dealer meaning you'll probably have to place a big order or get them in qty 100. Maybe some Japan people can help out here....

The stuff under the dash is mostly Amp/Tyco.

http://www.importpartspro.com/ni30oemlasti.html

more info from googling

[Colorado S14]

Damn Epstein! Now if I can just figure out which of those is the connector on the harness that plugs into the coolant temperature sensor........

[greenman100]

Its really just a matter of looking at datasheets and comparing.... but as people find connectors, post up here to save others work!

[Umai Kakudo]

There are also the Techmate terminal repair kits available.

Nissan Kits: http://tools.nissantechmate.com/Detail.aspx?id=319&search=kit
Infiniti Kits: http://tools.nissantechmate.com/Detail.aspx?id=318&search=kit

The bad: They cost $2K+ and are mostly non 240sx related plugs and most are pigtails requiring you to splice them in.

Brand new engine harness assemblies are available for reasonable prices from many aftermarket (Phase2Motortrend) and dealers that do performance (MyNismo, Nissanparts.cc, Courtesy) for around $400. You'll spend much more time and money sourcing connectors and all the other materials and assembling them so $400 is a bargain.

It takes forever to terminate connectors.

[GSXRJJordan]

I haven't been on NRR in forever, but Tim linked me this thread so I figured since most of my business is engine and chassis harnesses, I could weigh in...

I'm faced with this dilemma all the time - for LSx motors, I can get all the plugs without too much hassle and make me own Mil-spec harnesses from scratch relatively easily... one of these harnesses is what's in Conrad Grunewald's LSA Camaro kicking ass in Formula D. The terminals are all brand new and crimped directly into my M22759 wire.

http://xgh1yq.bay.livefilestore.com/y1pyVI8GOAkCIrzIQsJdXGdNXpKJDZxc696enz_1dyYjI2ijar 8qGAW33mkRh_AhcVkyKjWVcjC9NfNOGlksiCWmaxZ6OlESAQN/IMG_9942.jpg?psid=1

With my Nissan customers, it's a little tougher. I would not recommend buying a new OEM harness, even if they are only $400 - even if you could get them in LHD configurations. It's never going to be as good as a custom harness made with better materials.

For SRs/RBs I always have to have a core harness, and lots of times the plug bodies are brittle/cracking and/or the insulation has started to come apart behind the plug. I have to depin the connector without breaking it, clip the pigtail off, and remove the insulation to get a good solder onto the (hopefully) clean wire underneath. Then adhesive heat shrink all the way up to the weather seal on the plug and flame-retardant loom over the wire.

Sample RB25 tucked/loomed harness with OEM connectors reused... not ideal, but the best I can offer at present.
http://xgh1yq.bay.livefilestore.com/y1pA7OyBpnH1Q2ka9k8gZ2AwLnp88xqA0K4wATd2PEF1-npG7E0dHLYmclwfIipbvOSqQZnFv2CXEo9d65YdhT2-d7bs6ZVHMnn/DSC06164.jpg?psid=1

As far as Mil-spec bulkhead connectors go, more and more people are asking for them. They look rad, function well once they're in, and facilitate easy engine or harness removal (or modification to only one side of the harness). I offer them as an additional service to my harness customers, and have been asked a few times recently to provide kits for people making their own harnesses.


If you figure out how many pins you need for your upper and lower engine harness (most people are fine with 37-pin which is a fairly standard size) and let me know, I can put a kit together for you that'll have everything you need if you're down to sit through this nightmare for a couple hours.
http://xgh1yq.bay.livefilestore.com/y1p1LgwVlH-sXA7c_j3ehzfXMz-rHhTnGbWXZploj6U-gZtzVTY3nmcGgUusAnuSoaJUz5jN3scTlEpdmgrJzPk1lQAz6R NSUYs/IMG_9951.jpg?psid=1

Jeff [at] Jordan Innovations .com

[Epstein]

Where do you guys learn all this stuff?! Especially you, Epstein!

I've only been accumulating this info for about 6 years. The Sumitomo stuff was the last piece of the puzzle. It's crazy that you found my Ziptied post.

The GM stuff that GixxerJordan posted makes me want to vomit with envy. GM terminal/housing trays are all over the place. Like he said, with Nissan stuff you're forced to splice stuff everywhere and it's a giant cluster-f. Then people discover Deutsch (et al) connectors and put them inline. Now they have twice as many connectors on their harness! Arg. I would be happy to just call those manufacturers up and order the terminals, but I doubt they really care to make a $100 sale one bit.

If I were really sneaky, I'd design some Sumitomo or Yazaki parts into stuff at work and then lean on the reps/dealers for access to these parts. I already do a lot of business with Amphenol (audio), and I'm considering asking for some bulkhead and Deutsch DT-series compatible kits or samples.

[AceInHole]

Does anyone know where to get spare pins to re-pin the connectors? The AEM EMS came with a set of pins for the ECU, but I was thinking of completely repinning it (and possibly everything else).

[PerilousActs]

Does anyone know where to get spare pins to re-pin the connectors? The AEM EMS came with a set of pins for the ECU, but I was thinking of completely repinning it (and possibly everything else).

I would like to know this as well.

[Rustspecs13]

http://wiringspecialties.com/index.html

Give those guys a ring, they make brand new harnesses and I know Yuri went through alot to get GOOD new connectors. They really are new from ecu to sensor- good stuff. I almost was the prototype for a RB20 harness but I thought Id need the harness before they were done. I was wrong.

But maybe Yuri might sell the connectors separate to help a fellow enthusiast. Hes on the Nico forums, he has an RB30DETT s14.

GL~Alex

[tonto]

are u looking for the jae 64 connector?

i would think these guys could help u out

http://www.diyautotune.com/catalog/diybob-breakout-adapter-jae-64-pin-p-426.html

[tonto]

http://xgh1yq.bay.livefilestore.com/y1p1LgwVlH-sXA7c_j3ehzfXMz-rHhTnGbWXZploj6U-gZtzVTY3nmcGgUusAnuSoaJUz5jN3scTlEpdmgrJzPk1lQAz6R NSUYs/IMG_9951.jpg?psid=1


thats gorjus

i was looking at this before too:
http://www.amphenol-aerospace.com/circular_hd38999.asp

honorable mention: mark dadgar posted this to bf while back: http://www.fuzeblocks.com/
they look pretty neat. small, and you can have switched and non-switched stuff in the same box.

[kat_u13]

Thanks for this thread guys. I love this stuff.

[240rr]

http://wiringspecialties.com/index.html

Give those guys a ring, they make brand new harnesses and I know Yuri went through alot to get GOOD new connectors. They really are new from ecu to sensor- good stuff. I almost was the prototype for a RB20 harness but I thought Id need the harness before they were done. I was wrong.

But maybe Yuri might sell the connectors separate to help a fellow enthusiast. Hes on the Nico forums, he has an RB30DETT s14.

GL~Alex

I can't say for sure but someone told me Wiring specialties has their connectors made in Taiwan? Which means it's not factory sumitomo. I can't really speak on their quality because I haven't seen the conenctors myself. But I will say that Sumitomo has many years of R&D into their components and I think that makes it worth the extra work in getting the real deal. The real parts are out there sometimes you just need connects to find it.

Do not buy injector connectors from this link http://www.importpartspro.com/ni30oemlasti.html
They are charging almost $10 per pigtail. that's highway robbery for a 2 pin sumitomo connector.

For the record I have a bnib box of both of these. They weren't easy to come by but obviously it can be done.

http://i949.photobucket.com/albums/ad335/jimril_22/002.jpg

http://i949.photobucket.com/albums/ad335/jimril_22/001.jpg

[PerilousActs]

Where'd you pick them up at?

[240rr]

Got them from a warehouse that had acquired excess stock. Wish i didn't have to buy in such large quantities.

[KA240SX808]

Bringing back an old but good thread.

Anybody know where to pick up the JAE/JECS 64 (OBD1) and 88 (OBD2) pin Headers/Connectors?
I know DIY auto offers them in there kits but I emailed about ordering just the headers and got no reply now (1Month). Wondering if any of you guys knew where to get them?

[Mr. J]

I just stumbled across this: Sumitomo Connectors (http://www.bmotorsports.com/shop/index.php/cPath/109_110)

[KA240SX808]

^ yeah I was looking through there the other night but didn't think to post it.
Can't believe ppl charge so much for Honda **** when there dime a dozen when you search lol.

[tonto]

@KA240SX808 sorry to hear diyauto wouldn't sell you the parts. i have an email out to them to clarify the situation.

i went pick and pull hopping over the weekend and found the CAS connector (4 pin) on a 96 v6 camry. so i'm thinking we can pull from the toyota sources for some of these. i still don't know where to get new ones though...

[StanBo]

Did anyone figure what pins to use when repinning or wiring an oem nissan plug? For example my maf plug wires were stripped 1/4 of an inch off the plug. I want to strip and crimp a new pin on the wires and keep using the oem plug.

Any idea what pins I can use?

Sent from my T-Mobile G2 using Tapatalk

[240rr]

^ not sure on the maf plug, but it has the yazaki logo on it. The whole harness uses several different connectors from different series from different manufacturers. It's a pain to try and find everything.

In your case find a plug in the yard with the same style connector(90's max maf plug) depin it and use the pins.

[NismoPlsr]

For posterity.

http://easternbeaver.com/index.html

http://www.newunitedracetech.com/shop/

[Umai Kakudo]

Just found this: http://tools.nissantechmate.com/Display.aspx?id=17

Video and PDF instructions on how each type of OEM connector is disassembled.

Also a handy reference of manufacturer and model of the different connector types used.

[PerilousActs]

That's a glorious find.

Have a star sticker for that one:
http://blog.wegohealth.com/wp-content/uploads/2011/02/Gold-star-sticker.jpg

[tonto]

dood. Umai Kakudo for president.

say, i've been scouring the junk yards for sr20det connectors to make my megasquirt harness. is there any interest in a connector spotters guide or is it too obvious?

[PerilousActs]

Please make one.

I planned on doing one when I get around to my harness, but that's going to be a while now that we opened the shop.

[Umai Kakudo]

A spotters guide would be pretty sweet.

Looking at http://tools.nissantechmate.com/pdf/J-48817_HRK.pdf on page 5 Nissan already has an interactive database and naming system built into Consult Assist and TechLine for the US vehicles.

https://lh4.googleusercontent.com/-rdAdMFOdJgg/T0ff4agDzAI/AAAAAAAABFc/Zt0E9kQJpok/s720/NissanConsultAssistWiringDiagram.png

The interactive version of the FSM that dealers use has some nice info as well.

https://lh5.googleusercontent.com/-gOl5QrmUsRY/T0ff4q_HSZI/AAAAAAAABFg/Zk5Zxhn6ccY/s800/NissanFSMConnectorInfo.png

Notice the naming convention for the harness connectors and how it is linked to the connector name for the vehicle application.

Nissan Connector taxonomy:

Connector Family
Number of Terminals
Gender
Color


Some of these services are available for subscription from http://www.nissan-techinfo.com/. It would be nice if someone in a Nissan Service department could leak the software for us. ; )

Ideally, the spotters guide would list the attributes of the connector as well as the manufacturer information and dimensions for easy parts ordering.

A nice Bill of Materials (x number of x terminal part number, etc.) would be optimal and save people a ton of time once created.

The service department applications seem to have all this info in them already for '89+ USDM vehicles but we'd be on our own for JDM stuff unless some one can get a hold of the same resources and translate from Japan.

[NismoPlsr]

I will have some data for RB25 engine harness soon, unless i just give up and buy from Chasebays. Then after that i'll be working on the front half of the s13 silvia chassis harness.

[tonto]

s13 sr20det connector spotters guide

cops and tps

cops are grey with yellow middle (3 conductor).
tps is brown with orange middle (3 conductor).

the yards out here in cali the price for a "pigtail" is $2.50 or $3. pigtail is usually interpreted as all the connectors on a single wire, so snip carefully.

you will need 1 brown and 4 grey.

avail: 90's v6 front drive. picture is from '95 maxima

324

328

CAS

the cas is grey with orange middle (4 conductor). extra points for one with an orange wire visible. this usually means the 2 signal wires are shielded (as you can see in 2nd pic). to make this worth, you will need to trace the wire back a ways to snip enough to run it to your ecu i guess.

avail: 90's ka's and v6 fwd, q45. picture is from '93 altima. also saw one on a j30.

326

329

ecu coolant temp sender

its that orange thing down there. avoid urge to grab the purple idle control valve connector, its different.

avail: 90's ka's and sr20 fwd. picture is from 92 sentra.

325

injectors

not sure how useful to get injector connectors for the stock injectors, but they are the same on all nissans i've checked.

330


ignitor

the ignitor takes two connectors:
grey with orange middle (4 conductor)
grey with orange middle (5 conductor)

avail: '90's q45's. picture is from 94 q45

these are mine on the sr:
332

333

here they are complete with an ignitor on q45. afaik only the q45 has the 5 conductor connector. ignitor is labeled 50f00 instead of 50f01 but electrically i believe they are same.

327

also grab these two from the q45, they are for pwm idle control valve and the other one which i've forgotten the name of. can be found near the ignitor towards top of the motor.

331

connectors not covered here:

I'm not using a MAF so you are on your own.

on an sr20det the cops sub harness has a connector to the main engine harness. I'm going to use a bulkhead connector on the firewall so I didn't bother covering that here. I can add by request.

stock ecu o2 sensor.

the funny little grey connector on a 3" wire to the coolant temp sensor connector. i don't see any reason for this, so i'm dropping it.