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View Poll Results: 1.. Just a wire to wire connector. "so you don't have to cut your factory harness and
yes 53 98.15%
no 0 0%
maybe 1 1.85%
Voters: 54. You may not vote on this poll

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Old 03-14-2002, 02:31 AM   #1
Gerry
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Default ECU Adapter Harness..Finally

I just need to take a poll to see if people are interested in these. I am not selling they yet...I just need to see what kind of harness people would like to see.. This will shortly be available for the WRX soon too.
1.. Just a wire to wire connector. "so you don't have to cut your factory harness and void your warenty"
2..Piggy-back adapter fo aftermarket computer.'" I say piggy-back because you need your stock ECU for the air conditioner and a few other things" not sure what ecu's will be offered yet.
3..JDM engine swap using factory harness. "still working on it"

Here are a few pics..Sorry about the quality and spelling. I'll repost some quality pics when I get the my camera at the shop..Gerry
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Last edited by Gerry; 03-15-2002 at 01:14 AM.
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Old 03-14-2002, 03:55 AM   #2
8Complex

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Where the hell did you get the plugs for that?!?! I've been searching for them forever! I want one so that I can hook a Haltech into it without destroying the stock ECU harness... will be it less then $50?

Also, what about getting them without the male connectors on there, just the large female one?

Last edited by 8Complex; 03-14-2002 at 01:56 PM.
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Old 03-14-2002, 04:06 AM   #3
HndaTch627
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gerry make these and i'll make 8 kiss you!!!!
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Old 03-14-2002, 12:12 PM   #4
8Complex

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Dude, I'll trade you my sister for one of those (sorry, no pics).
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Old 03-14-2002, 01:08 PM   #5
SubaSonic
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Default I'd like 1 also

Don't have anything to trade (sorry no spare bodyparts) I'd like one for my 02 2.5 T/S. Whats the cost?
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Old 03-14-2002, 02:53 PM   #6
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Ooo!!! I want one of those!
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Old 03-14-2002, 05:07 PM   #7
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Good work, you are the EJ20 guru... Hope you hit the 700hp mark with your car!

The harness for the JDM swaps will be a hot seller for sure (need several of them), the"missing link" so to speak.

Thanks for the good info on which EJ20 is which the other day. Are the early (JDM)Legacy EJ20 s the "G" version (closed deck, 4cam, hydraulic lifters, 220hp), or something else? It sounds like that it is very similar, if not the"G" version.

The other day you spoke with a friend of mine (Matt A.) about a several wire standalone engine management system for the swap. What is the scoop on that? It sounds like a good tool for the job. Keep up the good work.
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Old 03-14-2002, 05:14 PM   #8
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Not all aftermarket ECUs will make you ditch your amenities. The Haltech will operate the AC bypass just as a stock computer does and will even control idle when set correctly.

This being said I'm with 8 on this. If you can get the plugs and aren't interested in making Haltech adapters then PLEASE let me (us) know where to get the female end of the plug so we can make our own adapters for Haltech installations.

~Garrett
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Old 03-14-2002, 06:26 PM   #9
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OK here we go...The fully assembled harness took around 6 hours to make. You have to crimp all of these pesky little pins. and there are 98 pins with both sides have to be done. If you want to buy the plugs.. I'll have to wait and see what my supplier will charge me for these.. These were sample pieces that I stuck together. I'll keep you guys posted....Gerry
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Old 03-14-2002, 11:22 PM   #10
8Complex

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Gerry - Most definitely. I am willing to do all the crimping, etc if you're willing to sell just the plug and pins (send a few extra too, please... I can screw up that stuff damn good ).
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Old 03-15-2002, 12:12 AM   #11
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Just curious.

Did you take into account that some of the lines on the stock ECU are shielded?


What year is that harness for? Looks like 98?
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Old 03-15-2002, 01:20 AM   #12
Gerry
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8..won't be a problem...I messed up a few too..
Tulit.. The stock harness I have in front of me dosn't have any shielded cable until 5 inches after the connector.I really doubt that it would matter..
The plugs should be the same from MY98 to MY01. The only difference are the pinouts..I jumped them all so there shouldn't be a problem..
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Old 03-15-2002, 09:54 AM   #13
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Quote:
The stock harness I have in front of me dosn't have any shielded cable until 5 inches after the connector.I really doubt that it would matter..
The plugs should be the same from MY98 to MY01. The only difference are the pinouts..I jumped them all so there shouldn't be a problem..
Shielding won't be a big issue as long as you keep the wires close to the floor and under the big ECU cover plate.

The plugs are very different for the MY98. There's only one connector instead of three. Any chance you might be interested in doing a MY98 harness too?

Thanks,

-WaC
Wayne
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Old 03-15-2002, 12:06 PM   #14
8Complex

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Unfortunately it's not the interest that really determines whether or not they're made, it's whether or not the plugs are even available. I have sent pics to big connector companies, in their automotive divisions, and even general divisions and noone has ever seen the big ECU connector before, nor the three little ones (looking for possible female counterparts rather then one big female connector like on the ECU). I think it's made by AMP, but damned if I can find it. :-/
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Old 03-16-2002, 01:53 PM   #15
TankSlapper
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Wow, I've been toying with same idea for a long time. I casually checked a few supplier sites out and never came across the ECU plugs. If you sold just the plugs, pins, and maybe even the wire, I'd buy that kit in a heartbeat. Very nice job on the prototype. I hope you find a supplier. Cheers/Jim
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Old 03-17-2002, 09:45 AM   #16
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Wow, this is great. RS guys hit this up.
8, I wanted to do the same thing with my WRX. I though I'd never see it happen. So I bought a link yesterday.

Good luck all,
Ken
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Old 03-17-2002, 01:33 PM   #17
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interested
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Old 03-18-2002, 04:37 PM   #18
8Complex

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Gerry - I don't mean to press, but do you think you can get a plug and pins for me within the next several weeks? It's either that or pick up an ECU I have a lead on that should work if I desolder the plug and connect wire to it. Just want to know before the lead is gone.
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Old 03-18-2002, 06:17 PM   #19
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Shouldn't take more then 2 weeks...I have to get them in from accross the pond...Gerry
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Old 03-18-2002, 06:37 PM   #20
8Complex

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Cool deal. Will stay tuned in in the meantime.
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Old 03-19-2002, 04:33 PM   #21
pat
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The connectors were all AMP as far as I could trace, and have always been available from AMP, but the problem has always been the volume... I looked into getting some a few years back and I had to buy them by the thousand, which was about 999 more than I needed No prizes for guessing that I didn't buy a thousand....

If Gerry can get them in smaller quantities then that is excellent news... I'de certainly be interested in a few, so good luck Gerry

For what it's worth...

Early EJ20G engines had 4 plugs (up to 1996/7), then the EJ20K engines from 1997-1998 ran with 3 plugs with two rows in each plug (like the earlier plugs), then for Phase II they changed it to 3 plugs, with 3 rows for 1999-2000 and MY01 onwards has four plugs with 3 rows of pins... these darn engineers, they love to change things!

Cheers,

Pat.
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Old 03-19-2002, 06:20 PM   #22
8Complex

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Quote:
Originally posted by pat
[b].....these darn engineers, they love to change things!
Now now... us mechanical engineers HATE to change things unless it's to make it far better or far less costly (without sacraficing quality). Electrical engineers on the other hand... well, damn! Those are some kooky guys!
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Old 03-19-2002, 07:03 PM   #23
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Well Pat.. The connectors are not made by AMP. They are made by a company in Japan called JIS. Asl far as I know the ecu plugs that are in europe and asia are different then the plug harness in the US.. If you send me a picture I can see what I can do for you. As for a inital buy-in.. I have to buy these things in a quanity of 100 pieces..If you can verify that these plugs are the same I would gladly send you what you need..I should have them soon....Gerry
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Old 03-21-2002, 12:43 PM   #24
PunKidd
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I wish you would have made this post two weeks ago. I just started cutting up my harness to install my Link
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Old 03-25-2002, 01:54 AM   #25
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I would want one for my 2000 RS turbo, for a link wire in ECU later (no plug in available for 2000).

What do you estimate the cost?

Larry
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