Wiring Harness Terminals

[adampecush]

Does anybody know where to buy replacement open barrel terminals for our wiring harness? As far as I can tell, the connectors on our harness are manufactured by sumitomo...I've found their website, but it seems to cater more towards the automotive OEM than the DIY guy.

here is the catalogue:
http://www.sws.co.jp/en/product/connector/pdf/wp_mt.pdf

[shaeff]

Try checking with figgie. If anyone knows, I'm willing to bet that he would. He's a wiring nut.

[figgie]

I think that Tyco (old AMP) has a direct replacement for the summitomo's in their SuperSeal 1.5 Series. I'll have to verify that....

[adampecush]

Figgie, I assume the Sumitomo MT series is equivalent to the majority of our wiring harness? (looking through that catalogue i posted, many of the connectors look like those on our engine harness)

I've found a site that sells quite a few varieties of the sumitomo terminals, although they do not have the male terminals listed for the MT series. I may have to send them off an email... http://www.automotivewiringsystems.com/4-40-products.htm

[figgie]

Adam,

Are you in the UK?

I see the sterling pound symbol for prices on that site.

[adampecush]

No, in Canada, that is just the only site I managed to find.

[figgie]

well Summitomo is Japanese so it will not surprise me one bit that they do spply to Honda, Toyota, Mazda etc. Thankfully the Auto industry has gotten thier stuff together with exchanging parts with similiar from competitors.

[adampecush]

hot damn!

http://easternbeaver.com/Main/Elec__Products/Connectors/Waterproof_Connectors/SM-MT/sm-mt.html

[figgie]

adam

they even carry the junction blocks connectors and pin set.... ;)

Looks like they are from Japan too.

[adampecush]

Yeah, this site has pretty much every single terminal/connector I was looking for. Nice to see they have the H4 headlight connector as well...as they are no longer available from toyota.

[shaeff]

Nice find! :)

[supraguru05]

out of curiosity this is kinda related along these lines, can the factory ecu plugs be re pinned ie the 3 large connectors that feed into the ecu.

[Quin]

I would think the ECU connectors are soldered straight onto the PCB inside the ECU so you would probably need to use a soldering iron and pull the old pin out of the board but it shouldn't be too much trouble.

[shaeff]

out of curiosity this is kinda related along these lines, can the factory ecu plugs be re pinned ie the 3 large connectors that feed into the ecu.

Be more specific. Depending on how you read your post, you could be talking about either the wiring harness side, or the ECU side.

[supraguru05]

Be more specific. Depending on how you read your post, you could be talking about either the wiring harness side, or the ECU side.

i appologize i am asking about the wiring harness side. namely due to a botched knock sensor rewire a couple years ago i would love to run fresh wire using the kit i purchased from you a little bit ago, since the place where i spliced into the factory harness a long time ago is really close to the connector leaving me almost no room to work.

[Jeff Lange]

Yeah, this site has pretty much every single terminal/connector I was looking for. Nice to see they have the H4 headlight connector as well...as they are no longer available from toyota.

Maybe not the exact ones that came on the MK3 aren't, but Toyota still uses H4 bulbs, just get the connector for one of them, maybe?

Jeff

[adampecush]

Fuck yeah, mailman arrived today...

My crimper and I are going to have some fun!

http://i118.photobucket.com/albums/o105/suprarestoration/Parts/P1020822.jpg


wow I'm a nerd.

[dreamweaver13]

Adam,

Looks like you bought the 4 terminal MT connector. I was looking to buy the same part, but I couldn't verify if it was interchangeable with the stock connectors.

For example. I need to replace the harness-side connector at the CPS (green 4 terminal). From the pictures, it doesn't look like the MT or HM connectors are interchangeable. If I have to replace both sides of the connector, I may as well buy something more local.

thanks
Jordan

[Zumtizzle]

hot damn!

http://easternbeaver.com/Main/Elec__Products/Connectors/Waterproof_Connectors/SM-MT/sm-mt.html

Sticky in tech section? :)

[adampecush]

Adam,

Looks like you bought the 4 terminal MT connector. I was looking to buy the same part, but I couldn't verify if it was interchangeable with the stock connectors.

For example. I need to replace the harness-side connector at the CPS (green 4 terminal). From the pictures, it doesn't look like the MT or HM connectors are interchangeable. If I have to replace both sides of the connector, I may as well buy something more local.

thanks
Jordan

the connectors themselves are not interchangable, but the pins are exactly the same. You can de-pin and install a new plug pretty easily. I did this for my fuel injectors to avoid chopping up my harness.

edit: I've got 3 old wiring harnesses kicking around and could probably de-pin one of the connectors you are looking for and send it to you...pm me if you want.

[Kai]

Yep, i vote for a tech section sticky as well, these sorts of parts will become more necessary as Toyota discontinues more and more of their old parts.

Incidentally - figgie, any idea what awg or swg gauge wire is used in the harness, and where can you source it?

[figgie]

Kai,

the OEM harness?

They are using lots of 18-16 guage.

16 guage for the higher amperage runs.

18 for the normal.

have to check what wire is called as it is PVC based. That much I remember.

[jetjock]

Everything you ever wanted to know (and then some) about the wiring and color coding scheme Toyota uses is in the Body Electrical Manual. Publication# STI1018E. There's so much there I'd need specifics in order to answer questions but figgie is correct in that most of it is insulated with one form or another of polyvinyl chloride. And not to be picky but the gauge is standard metric, not AWG. No surprise since the "A" in AWG stands for, well, you know...

[bfr1992t]

Good find!

Any chance you could point me to the connector hoods and terminals for the 7MGTE igniter? I need the igniter side, not the engine harness side.

[adampecush]

probably easiest to source the connector from a parts car/junk yard. The required terminals are those offerred on the eastern beaver page (sealed MT). These are the exact terminals used in the majority of plugs on our wiring harness.

If you wanted, you could just use two of the 4-pin connectors and de-pin the harness side plugs and pop the pins into the new connector.

[bfr1992t]

Hmm, actually you have a good point that I should have thought of. I need only the terminals and can reuse the connector from another igniter. I want this mod to be plug compatible with a stock igniter so if it fails I can plug a spare igniter in and change the ignition back to multiplexed. New terminals prevents destroying a working igniter and introducing a lot of splices.

Thanks.

[adampecush]

Hmm, actually you have a good point that I should have thought of. I need only the terminals and can reuse the connector from another igniter. I want this mod to be plug compatible with a stock igniter so if it fails I can plug a spare igniter in and change the ignition back to multiplexed. New terminals prevents destroying a working igniter and introducing a lot of splices.

Thanks.

no problem...i did the same thing with my fuel injectors and coil pack wiring to avoid hacking up a brand new harness so I understand where you are coming from.

[GC89]

the connectors themselves are not interchangable, but the pins are exactly the same. You can de-pin and install a new plug pretty easily. I did this for my fuel injectors to avoid chopping up my harness.

edit: I've got 3 old wiring harnesses kicking around and could probably de-pin one of the connectors you are looking for and send it to you...pm me if you want.

So these arent the same as the factory plugs? I was hoping the 4 pin was identical to the factory cps and coil pack plugs. So does Sumitoto still make the plugs from our harness at all, or just similar ones?

[adampecush]

So these arent the same as the factory plugs? I was hoping the 4 pin was identical to the factory cps and coil pack plugs. So does Sumitoto still make the plugs from our harness at all, or just similar ones?

correct, they are not interchangable. The original series connectors are discontinued, but they likely still make compatible connectors. Good luck finding them one-off though. Sumitomo's site really only caters to the OEMs. Dealers may still carry them though.

[Kai]

Just to update this thread with the NEW link;

http://easternbeaver.com/Main/Elec__Products/Connectors/Sealed/SM-MT/sm-mt.html

[ForcedTorque]

Thank you SO Much for bringing this thread back to life where I can see it! And, the renewed link is priceless!

[NYsBlueMA]

Okay i got all the female pins but where can i find the males? this should definitly be a sticky

[Kai]

Looking for a few more connectors - need a source for 90980-10591 - the CPS and Coil pack connectors.

[Jeff Lange]

I should be able to get those for you Kai, let me know and I'll get them on order.

Jeff

[snyder250]

Is the a place that sells new complete wiring harness? I called my local toyota dealer and he said the no longer can get it. its a 87 7mgte with aut transmisson+TEMS.Any ideas?

[fixitman04]

i want to make a diag sst. which male terminal pin do i need? will the ht/mt pins fit our diag connector?

[adampecush]

Are you going for a two-pin jumper (i.e. for the check engine light) or something that plugs into each female pin? If going for the former, a paperclip has always worked for me.

With that said, I can check compatability next time I'm around my stash of spare parts.