Wiring Harness

[PhilD]

Does anyone know where I can get a after market wiring harness for a MKIII. I have a 87 MKIII with 60k original miles on it and the wiring is dried out and causing problems. I have replaced a wiring harness here and there but there appears to be a issue somewhere else. The car is a Arizona car so a lot of the wires are dried out. Its causing it to drain the battery.

I probably posted this in the wrong section as well sorry for that.

Thanks for any input.

 

[suprarx7nut]

I think you have the right section, no worries there. At least its close (unlike plenty other threads... lol)

Dr. Tweak of Pheonix Tuning does rewires on the harness. It's not cheap, but it looks to be top notch work and its about the only "professional" option around these days. Plan on spending $500+ for the full harness.

 

[PhilD]

Thanks I ll check it out because I'm pretty much restoring the car even though it looks like its in tip top shape. The poor car sat for so long now it needs some TLC.

 

[hvyman]

I can do wiring as well.

 

[suprarx7nut]

I can do wiring as well.

Do you have access to replacement connectors? I need virtually every last one replaced and if you have those, i may throw some cash your way.

Sent from my ADR6400L using Tapatalk

 

[mkiii222]

Might be a lucrative business coming up for MKIII harnesses. I know that once I'm able to get a daily beater and have the spare cash (6-9 months) I'll be pulling my harness as I'm sick of random wires breaking or going to rewire a plug only to find the wire filled with green corrosion.

 

[te72]

I would also recommend signing up for azsupracentral.com. Not sure who's posting on there anymore, but there are some good guys (and a couple gals) down there that share our hobby/obsession.

 

[PhilD]

I'm on azsupracentral.com and there really isnt too much going on over there came across this just by searching online for info on some stuff and supramania came up 9 out of 10 on my searches so figured best option. I picked up my supra last year from a buddy of mines old roommate he left behind while he went to school and needed cash fast so picked up the car for a steal for the shape its in and the amount of mileage it has. obviously 23years later it needs some loving.

 

[Kai]

I'm doing a wiring harness for Bri7man - all the terminals and wire seals are still available, the only issue is some connectors - but some are still available from Toyota, and most existing connector housings can be reused with fresh pins, assuming they're not cracked or broken.

 

[suprarx7nut]

I'm doing a wiring harness for Bri7man - all the terminals and wire seals are still available, the only issue is some connectors - but some are still available from Toyota, and most existing connector housings can be reused with fresh pins, assuming they're not cracked or broken.

That's the hard part for me... I need virtually every last connector. Mine are all horrible. I think one of my ecu connectors is ok. That's it.

Sent from my ADR6400L using Tapatalk

 

[Kai]

I have a BUNCH of spare connectors. And the part numbers for all the other harness connectors you need.

Connector Description			Polarity	Pins	Part Number	Listed In	Terminal
=====================			========	====	===========	=========	========

Throttle Position Sensor		Female		4	90980-10378	RM06H0E		MIC
7M-GTE Airflow Meter			Female		5	90980-10624	RM06H0E		2.3
Water Temperature Sensor #1		Female		2	90980-10735	RM06H0E		1.8
Water Temperature Sensor #2		Female		2	90980-10737	RM06H0E		1.8
O2 Sensor				Female		3	90980-10245	RM06H0E		TODC
Injector Resistor Pack			Female		4	90980-10220	RM06H0E		6.3
Injector Connectors			Female		2	90980-10702	RM06H0E		2.3

7M-GTE ECU #1				Female		26	90980-10763	RM06H0E		1.0 & 1.8
7M-GTE ECU #2				Female		16	90980-10764	RM06H0E		1.0
7M-GTE ECU #3				Female		22	90980-10765	RM06H0E		1.0 & 1.8

Engine to Body Connection #1		Female		15	90980-10815	RM06H0E		4.8 & 2.3 II
Engine to Body Connection #2		Female		22	90980-10526	RM06H0E		TNS
Engine to Body Connection #3		Female		23	90980-10921	RM06H0E		1.3 & 2.3 II
Diagnostic Block			Female		18	90980-10778	RM06H0E		2.3 & 6.3

Knock Sensor Connectors			Female		1	90980-10197	RM06H0E		TODC
VSV Connectors				Female		2	90980-11149	RM06H0E		2.3 II
Heater VSV & Power Steering Connector	Female		2	90980-10496	RM06H0E		2.3
Starter Motor Connection		Female		3	90980-10249	RM06H0E		6.3

ABS Rear Sensor Connection		Female		4	90980-10476	RM06H0E		2.3
Unknown!				Female		6	90980-10478	RM06H0E		2.3
Igniter Connection #1			Female		4	90980-11292	RM06H0E		2.3 II
Igniter Connection #2			Female		6	90980-11197	RM06H0E		2.3 II


Terminal Type	Polarity	Part Number	Waterproof	Packing
=============	========	===========	==========	=======

1.0		Female		82998-12310	No
1.3		Female		82998-12420	No
1.8		Female		82998-12190	No
2.3		Female		82998-12170	No
2.3 II		Female		82998-24380	No		
4.8		Female		82998-12380	No
6.3		Female		82998-12060	No		90980-09211 (3-pin)
MIC		Female		82998-12120	No
TNS		Female		82998-12250	No		
TODC		Female		82998-12090	No		90980-09378 (1-pin) / 90980-09379 (3-pin)


Aftermarket Injectors use BOSCH JUNIOR TIMER connectors.

ECU Connectors are branded AMP Multilock, Toyota Designated 'Type B, Non Waterproof'

 

[suprarx7nut]

that's a huge help, Kai!!! Is this where I offer to mail you a bj or is that later, lol.

Time to start tallying the cost.

Any recommendations on actual wire? Id love to maintain the factory colors if possible, but I haven't found anywhere to buy all those specific color combos. :dunno:

Thanks again that list is a huge help.

Sent from my ADR6400L using Tapatalk

 

[hvyman]

Do you have access to replacement connectors? I need virtually every last one replaced and if you have those, i may throw some cash your way.

Sent from my ADR6400L using Tapatalk

Yup. I can get most of them if not I have some spare harnesses that I can grab some good used ones from.

I'd look fpr some ptfe wire. It's fairly cheap, you can run a gauge smaller, and it doesn't catch on fire.

 

[Kai]

http://www.polevolt.co.uk - look at the 1.0mm core - every standard colour going

That's what i use.

Also, i just realised, the body connector p/n's in that list will be INCORRECT for USDM applications - you guys have your own separate ones, probably related to the climate control differences.

 

[PhilD]

well i could go into toyota with that list and say match these up some how. Got a awesome chick that works in the parts department gotten a few things that at one dealership wanted like 300 bucks for everything and i ended up paying 125 out the door cause shes a Supra Enthusiasts and gave me the hook up.

 

[suprarx7nut]

http://www.polevolt.co.uk - look at the 1.0mm core - every standard colour going

That's what i use.

Also, i just realised, the body connector p/n's in that list will be INCORRECT for USDM applications - you guys have your own separate ones, probably related to the climate control differences.

You might be my new hero.

 

[te72]

well i could go into toyota with that list and say match these up some how. Got a awesome chick that works in the parts department gotten a few things that at one dealership wanted like 300 bucks for everything and i ended up paying 125 out the door cause shes a Supra Enthusiasts and gave me the hook up.

Very nice... Wes, at Earnhardt Toyota in Mesa is another really good local resource for you Arizona guys. Not to derail the thread, but if you haven't eaten at Chino Bandido yet, and you live that close... you're missing out.

 

[Kai]

Polevolt also sell the Sumitomo MT series pins and wire seals. Even the larger pins.

 

[suprarx7nut]

Polevolt also sell the Sumitomo MT series pins and wire seals. Even the larger pins.

Kai! Polevolt doesn't shipping anywhere outside the UK.

 

[Kai]

add me on skype (ktr239), and we'll talk.