Possible to rebuild '97 MAF connector?

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shfd739

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In tracking down a rough running cause today I noticed that 2 of the wires off the MAF connector were stretched and bare strands are showing.

Well in unhooking the connector these 2 wires broke off the pins. Is it possible to splice in new pins or do I need to splice in a new connector harness?

Truck is a '97 and is currently dead in the driveway.
 
de-pin the connector. there would be a clip inside, you have to carefully hold back while you pull the pin out the connector. you can possibly resolder the wire back to the pin or order a new pin from toyota.
 
I have the wire harness repair manual. It has instructions and part numbers for plugs and pins. PM me your email and I'll send it to you. I'd buy new pins and crimp them on.
 
DARKNESS said:
I have the wire harness repair manual. It has instructions and part numbers for plugs and pins. PM me your email and I'll send it to you. I'd buy new pins and crimp them on.
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Ill send you my email. Went by the Toyota dealer and was told the pins aren't available- only a new harness for $$$$$

LS1 I'm gonna try and salvage the remaining ones by resoldering. Or just replace all of them.
 
landtank said:
pins come with pigtails so you just solder them onto the wires after trimming them back some.
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That's what I was expecting. I've rebuilt friends Jeep and Chevy harnesses this way when they've had connectors fail. Dealer dumby insisted Toyota doesn't sell the pins and "these are Toyotas not Jeeps".

Darkness I got the manual. Thanks again. Ill go thru and pull part numbers tonight then head to the dealer tomorrow to order them and irritate the parts guy. He's gonna love being proved wrong and having to give me our club discount too lol.
 
shfd739 said:
Ill send you my email. Went by the Toyota dealer and was told the pins aren't available- only a new harness for $$$$$

LS1 I'm gonna try and salvage the remaining ones by resoldering. Or just replace all of them.
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if you had this thread up sooner i would have cut you off the connector from the 97 LC that was in the junkyard.
 
BlackLS1 said:
if you had this thread up sooner i would have cut you off the connector from the 97 LC that was in the junkyard.
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That would've been perfect lol. Thanks for the offer.

Not a problem though. Ill get the new stuff ordered tomorrow.

Grabbing the complete might harness might benefit someone though.
 
To follow this up.

Rebuilt the MAF this morning. Should've been done yesterday but the dealer wasn't helpful in making the order for parts. Took about 30mins to do this morning.

Couple pics with the part numbers. Total cost was $35ish.

image-502784405.webp


image-2419207370.webp
 
Small hint on Toyota wiring connectors. Most of the connectors have the last five digits of the part number on the connector. It is usually hidden in the most obscure place and difficult to read. I had to depin my fuel injector connectors to see the part number.

My sixteen step son bought a 93 4runner right now with lots of broken connectors. (We are looking to upgrade to an 80). What I noticed is that if you add the prefix 90980- to the last five digits on the connector you have a valid Toyota part number.

My local dealer had no clue about this and told me that my particular connectors weren't available. Ordered them from CDAN. First thing CDAN asked me for was the five digit number being on the connector.

If you google you can find the Toyota wiring repair manual on the web. The wiring manual is nice to have, but if you need just the connector the five digit number will do.

I went to the local dealer today for another connector and asked him if they a book with part numbers for all the connectors. They looked at me like I was nuts.
 
jdsalinger said:
Small hint on Toyota wiring connectors. Most of the connectors have the last five digits of the part number on the connector. It is usually hidden in the most obscure place and difficult to read. I had to depin my fuel injector connectors to see the part number.

My sixteen step son bought a 93 4runner right now with lots of broken connectors. (We are looking to upgrade to an 80). What I noticed is that if you add the prefix 90980- to the last five digits on the connector you have a valid Toyota part number.

My local dealer had no clue about this and told me that my particular connectors weren't available. Ordered them from CDAN. First thing CDAN asked me for was the five digit number being on the connector.

If you google you can find the Toyota wiring repair manual on the web. The wiring manual is nice to have, but if you need just the connector the five digit number will do.

I went to the local dealer today for another connector and asked him if they a book with part numbers for all the connectors. They looked at me like I was nuts.
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I realized kinda late the last 5 digits are on the connector. Didn't help as mine wasn't legible.

Local dealer did the same to me saying the connectors and terminals weren't available and wanted to sell a whole new chassis harness. He wasn't too happy when I showed him the parts this morning and told him he was lazy for not helping me look it up.

I got the wiring manual from Darkness and can forward it to you. That made it super easy to match the right terminals to the connector.
 
Did you use a special tool to crimp the new terminals? So far I have been lucky and haven't needed to replace any pins.

The local dealer insisted on ordering the pigtail which turned out to be the wrong end of connector.:doh: I definitely got some attitude when I returned the next day armed with some knowledge about how Toyota wiring connector part numbers work and asked why they don't have a copy of the harness repair manual. I had a printout of the page with my connector.

Thanks for the offer of emailing the manual, but the manual is available for download here:
http://www.97supraturbo.com/1997 Service Manual/Wire Harness Repair.pdf

From now on I think I am going to order every part by mail from CDAN even if the shipping is more than the part.
 
I used butt connectors with built in heat shrink to connect the new wires to the existing. Placed the wires into loom then taped over all with electrical tape. Turned out pretty clean.

Soldering may have been a better option but my iron wouldn't get hot and I didn't have a working truck to go get another one. The butt connectors I keep a supply of.

I'm to the point of using Dan or Onur after this. I may have to wait an extra day or so but the local dealer is getting so difficult with special orders (even if i already have part numbers)it'll be worth it.
 
You can also order crimp on connectors from newunitedracetech.com. They have some toyota cross references on the site, but generally I just go by the pics. The connectors are all Yazaki or Sumitomo. I ordered a bunch of the interior ones for various wiring projects.
 
FJC80 said:
So- this fixed the rough running issue completely or you still have searching to do?
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It helped a little. I did go back to the stock maf after fixing the connector and that seems to have helped some as well. Next step is fixing the cause of the usual egr code.
 
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