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Ah, hell, the S5 knock sensor plug is the same as the S4 knock sensor plug and S4 O2 sensor plug. I've also not had luck finding that. If it's anything worth mentioning, we're not the only one that uses the S4's oxygen sensor. Apparently it fits B2600s and some Ford/Mercurys, but I haven't been able to capitalize on that information.
As for the AFM, it really looks Sumitomo-esque in design. Reminds me of the TS and TL series in shape but the 5 pin connector of the TS family has 2 rows and the TL 5p connector doesn't have accommodations for the internal tabs. The HV and HX 5p connectors kind of look like they have the internal indexing tabs in the right spot. Do you know what tab width the terminal has? That will help hunt it down. Curious to see if anything else shares this plug. I think the NB's MAF connector is different but close.
A little off topic but, my race car has a gutted interior and the fuel pump connector is exposed to sunshine through the hatch glass. I recently had to troubleshoot a fuel pump relay problem and when I looked at the fuel pump connector, the plastic crumbled in my hand. (actually just the female connector on the harness side)
Any idea how well these replacement connectors in general hold up to UV light?
A little off topic but, my race car has a gutted interior and the fuel pump connector is exposed to sunshine through the hatch glass. I recently had to troubleshoot a fuel pump relay problem and when I looked at the fuel pump connector, the plastic crumbled in my hand. (actually just the female connector on the harness side)
Any idea how well these replacement connectors in general hold up to UV light?
I don't think there's going to be much difference vs OEM. Nylon is generally quite poor with UV resistance, which is what most connectors are made of. Natural colored zip ties are also made of 6/6 nylon, which is a good reference for how long connectors would last in the sun. Maybe the black nylon connectors last a little longer than the natural ones like black zip ties do? Just speculating. Other materials they're made of include PBT and POM, neither of which are that great with UV resistance either.
One solution might be to slip a bit of corrugated split loom over the connector. Or tape it. There are aluminum shell connectors, but that seems like a silly expense putting Autosport connectors on the fuel pump just because of UV exposure, lol
Morning, I've come to report some late late late night haven't slept and I'm probably off my rocker revelations.
I stumbled on a Toyota wire harness repair document that had a visual guide for all of their electrical connectors. One of the connectors looked suspiciously like the S5 MAF connector:
Turns out 7M-GTE and 1UZ MAFs have a really similar connector despite being a hotwire MAF. Possibly the same. Actually probably the same given there's an RX7Club thread about how someone just plugged one of these MAFs straight into an S5 because the connectors are identical:
I can't shake the sensation that it's so uncannily Sumitomo-esque while not being anywhere on Sumitomo's catalogs. The hood over the release tab just does not fit anything I've seen from Sumitomo, Yazaki, Furukawa, TE, Aptiv, KET, etc. Maybe I'll go to a junkyard and find an LS400 to look over. Get some context clues from what connectors it uses, whether the terminals match another 2.3mm terminal from Sumitomo or something. Worst case scenario, at least there's a whole lot more 1UZ cars out there that probably don't have excessively crispy connectors.
Worth noting the Toyota connector does differ from the Mazda one by having a white TPA of sorts.
Non-update this month. Adventures in connector identification have stalled because TE told me to go shove it when I asked for samples for some connectors I have some suspicions of.
A friend told me how do linux and I botched it badly enough he set up everything for me instead. I'm working on hosting a website to archive all the information about connectors I've run into in a clear, presentable way. We will see how that goes. I need to take a LOT of pictures in the coming weeks so don't hold your breath.
Hey dude!! Call me! We need to Join Forces on this one!! The universe conspires to get likeminded beings together.
I literally came up with the MAF connector TODAY!
CALL ME!
Hi there, left you a DM the other day with my contact info. Replying here in case it got lost in the wind.
Originally Posted by JerryLH3
I went to my local Toyota dealer today and ordered the connector, so we shall see when it gets here.
As a side note, that Toyota parts guy could not have been less thrilled to interact with me.
Looking forward to how it goes. If you were able to place the order, then thankfully it sounds like its not discontinued and out of stock. My main concern is if the contacts are incompatible between housings, but I guess we'll see.
Also, I don't remember who mentioned that Yazaki is kind of difficult to source, but good news on that front - I just got an email from Mouser that they are adding the 58_ family connectors, so there's hope that the full Yazaki catalog will be in their distribution network eventually. If I remember correctly, the reason it was brought up was because I thought the PA connectors were OEM Yazaki, but I finally forced myself to look at my parts car and found "AMP" embossed on the connectors on it. I guess that would make TE (AMP) the actual OEM for the units that shipped out on our RX-7s. Yazaki does make the CN(A) connectors on our RX-7s though, so there's also that. If you want to check, get your microscopes out and start looking under the 30 years of dirt to find that little arrow head that Yazaki uses for its logo.
Santa's back with useless gifts. I managed to drag out an ancient KET catalog so we all can look at what missing connectors we can't buy and... cry I guess.
First up, the mystery circular connectors that had everyone stumped. I ran into this way long ago but lost the name of the connector family because of KET's website changed, making the hyperlink in my notes useless. It's called the KET BS (118) connector. Aptly named. It uses the same terminals as the KET PA 118 (also known as Yazaki PA and TE/AMP MIC-II) connectors. Given the effort KET went to scrubbing their site of these connectors, I'm assuming they've long been discontinued. I've seen these housings for sale on Aliexpress from Chinese manufacturers, but I have never tried ordering electrical connectors from there, so I can't speak for how usable they will be. You've seen these in:
-Headlight motor connectors
-Idle air/fuel mixture variable resistor connectors
-Harness interconnects between front and front engine harnesses
-FPRR assembly connectors (S4 only, S5 uses something else)
Variation with a provision for a mount rivet. I don't think we needed these versions, but noted anyways:
Next up is the connector used for the power side view mirrors. There are 2 connection points chained after the other - the first plugs directly into the mirror body and is a normal 4P. This connector is usually hiding behind the trim that covers the mirror backside, so there's a second connection point under the door card. This is the same 4P connector, except with a mount rivet to clip it into the door frame.
The reason these ridiculous connectors look like they should be easy to find but aren't is because they are part of the 090 family of connectors. Yazaki's equivalent (also called 090) doesn't acknowledge its existence, and neither does Sumitomo (MT090). The rest of the family is used in interior electrical interconnects, i.e. between the door sub harness and the rest of the body harness. I'm wondering if its a unique KET variation.
From Yazaki's catalog:
And as a bonus, here's those CN(A)s with the mount rivets:
I found it: Part number MG610489!!! Ordered from Aliexpress and mounted yestarday! After 7 years electrical of my FC T2 Vert in restored in mint conditions!!!
Glad to see you found a solution to your problem. I threw out the KET catalog snippets just to close the loop on the insane witchhunt, but didnt expect anyone to make use of it. How are you liking the fit and finish of the Aliexpress housings?
Glad to see you found a solution to your problem. I threw out the KET catalog snippets just to close the loop on the insane witchhunt, but didnt expect anyone to make use of it. How are you liking the fit and finish of the Aliexpress housings?
Morning, I've come to report some late late late night haven't slept and I'm probably off my rocker revelations.
I stumbled on a Toyota wire harness repair document that had a visual guide for all of their electrical connectors. One of the connectors looked suspiciously like the S5 MAF connector:
Turns out 7M-GTE and 1UZ MAFs have a really similar connector despite being a hotwire MAF. Possibly the same. Actually probably the same given there's an RX7Club thread about how someone just plugged one of these MAFs straight into an S5 because the connectors are identical:
I can't shake the sensation that it's so uncannily Sumitomo-esque while not being anywhere on Sumitomo's catalogs. The hood over the release tab just does not fit anything I've seen from Sumitomo, Yazaki, Furukawa, TE, Aptiv, KET, etc. Maybe I'll go to a junkyard and find an LS400 to look over. Get some context clues from what connectors it uses, whether the terminals match another 2.3mm terminal from Sumitomo or something. Worst case scenario, at least there's a whole lot more 1UZ cars out there that probably don't have excessively crispy connectors.
Worth noting the Toyota connector does differ from the Mazda one by having a white TPA of sorts.
I can confirm this 90980-10624 connector is correct for MAF and ingnition coils for a Original Cosmo Eunos 20B also.
This connector comes without the terminals inside and the watertight plugs from Toyota. So you need to buy them seperate.
Terminals I beleive are DJ621-G2 model, waterplugs are approx. 5mm outside diameter and 6.5 mm long. Hope I remember to confirm this when my order arrives.
Hope this message helps somebody.
I need to dig thru my notes, but I remember comparing Yazaki 090 sealed terminals and it looking like it was a match. Corsa lists those terminals as cross compatible with Sumitomo's HM, HW, and MT series, and its terminals seals compatible with Sumitomo's HM and MT series.
I tried to buy that Toyota connector and the dealer never called me back. I probably should have just ordered online. I can confirm I used Sumitomo terminals and seals and reused my connector when I did my harness. No issues with those terminals working.
I can confirm this 90980-10624 connector is correct for MAF and ingnition coils for a Original Cosmo Eunos 20B also.
This connector comes without the terminals inside and the watertight plugs from Toyota. So you need to buy them seperate.
Terminals I beleive are DJ621-G2 model, waterplugs are approx. 5mm outside diameter and 6.5 mm long. Hope I remember to confirm this when my order arrives.
Hope this message helps somebody.
Yesterday my order came in
The DJ621-G2 terminals are correct for the Toyota 90980-10624 connector. And also for the original FC3S MAF connector.
Waterplugdimensions above are correct.
Maybee a little bit off topic:
I found out today the same terminals also fit in the diagnostic connectors Found on the Rx-7 FC, FD, Cosmo Eunos, Mx-5/miata NA and NB and many other models from before OBD2 became standard.
Originally Posted by pzr2;12534583...First up, the mystery circular connectors that had everyone stumped. I ran into this way long ago but lost the name of the connector family because of KET's website changed, making the hyperlink in my notes useless. It's called the KET BS (118) connector. Aptly named. It uses the same terminals as the KET PA 118 (also known as Yazaki PA and TE/AMP MIC-II) connectors. Given the effort KET went to scrubbing their site of these connectors, I'm assuming they've long been discontinued. I've seen these housings for sale on Aliexpress from Chinese manufacturers, but I have never tried ordering electrical connectors from there, so I can't speak for how usable they will be. You've seen these in:
-Headlight motor connectors
-Idle air/fuel mixture variable resistor connectors
-Harness interconnects between front and front engine harnesses
-FPRR assembly connectors (S4 only, S5 uses something else)
Variation with a provision for a mount rivet. I don't think we needed these versions, but noted anyways:
...
New development regarding those KET BS 118 connectors - it looks like Corsa Technic is starting to introduce that family into their catalog. They currently only have 1 and 2 pin versions. Maybe if we annoy them enough, they'll support the 3, 4, and 6 pin connectors used in our cars
Thats very good to know. When i was re-doing my harness connectors, I found that my circular connector was in decent shape, just a bit dirty so i re-used em.
Hopefully corsa comes out with the 3, 4, and 6 variants.
