 Using a '93 3SGTE ECU on a '91 3SGTE Engine and Harness |
 Sep 8, 2007 - 12:09 PM
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 Enthusiast  Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%)  |
Some weeks back I had a customer doing a 3SGTE swap into a '91 Celica that I did a wiring conversion for. After he got it back and installed, I asked him for the part number on his ECU since I've seen many situations where the importers send the wrong ECU for the year of the harness. Sure enough, he had a '91 Harness but a '93 ECU. I advised him to get a '91 ECU, but he was having a hard time locating one.
About the same time, I started gathering parts and doing research for making jumper harnesses for various Toyota applications. I located the supplier for the female ECU plugs for a few different Toyota harnesses. When I got one in that matched the 3SGTE harnesses, I though, why not make a jumper harness that goes from a '91 harness to a '93 ECU, or a '93 harness to a '91 ECU? Then customers who run into this situation don't have to find another ECU or repin the whole harness. Since I had this customer, Bryant, who had this very situation at hand, and since I happened to be going near where he lived on a recent road trip, I decided to whip up a prototype and give it a try.    There it is plugged into a 3SGE ECU as an example. This first one came out a little rough, the production model will be cleaner. And here it is plugged into the car:  The jumper harness worked PERFECTLY. It fired up the first try and is running great, no codes and no problems at all  If anyone wants one of these jumper harnesses let me know, I'm currently building them to order. Other applications for this setup include plug and play jumper harnesses for standalone units that don't already have a plug and play setup, like perhaps 3SGTE/Autronic, and so on. -Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Dec 27, 2007 - 8:02 PM
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 Enthusiast Joined Feb 10, '03 From Connecticut Currently Offline Reputation: 11 (100%) |
I have a 92. I am sorta thinking out loud, but it would be great to put that in and get rid of the AFM.
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Dec 27, 2007 - 10:15 PM
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Enthusiast Joined Jan 17, '04 From Illinois Currently Offline Reputation: 0 (0%) |
QUOTE(Supersprynt @ Dec 27, 2007 - 7:02 PM) [snapback]626148[/snapback] I have a 92. I am sorta thinking out loud, but it would be great to put that in and get rid of the AFM. I thought about this at one time and then did a little research to see what was involved. Suffice it to say, it doesn't really make economic sense. Gen II to Gen III ECU Swap Thread -------------------- QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback] i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this. |
Posts in this topic
Dr_Tweak Using a '93 3SGTE ECU on a '91 3SGTE Engine and Harness Sep 8, 2007 - 12:09 PM
presure2 nice work tweek. Sep 8, 2007 - 12:24 PM toyotacrazy Thats cool you are doing this. I was one of the p... Sep 9, 2007 - 10:18 AM Punch just when you think he couldnt do anything better ... Sep 9, 2007 - 12:28 PM Dr_Tweak Thanks guys
Now that I have access to these fema... Sep 9, 2007 - 9:03 PM Rayme I love your soldering skills Sep 12, 2007 - 9:37 PM Dr_Tweak $199, in stock, if you want one, email me at ... Dec 27, 2007 - 1:20 PM
BriinumsBo QUOTE (Dr_Tweak @ Dec 27, 2007 - 1:2... Jul 13, 2010 - 7:39 AM pittfirefighter i have a 92 ecu with a blown 92 block and crank...... Dec 27, 2007 - 1:33 PM lagos thats some nice work! now get started on a 3sg... Dec 27, 2007 - 1:48 PM Supersprynt You know what I'd like, ST185 -> ST205 ecu. Dec 27, 2007 - 6:58 PM Dr_Tweak QUOTE(lagos @ Dec 27, 2007 - 6:48 PM... Dec 27, 2007 - 7:19 PM BloodyStupidDavey QUOTE(jgreening @ Dec 28, 2007 - 3:1... Dec 28, 2007 - 5:54 AM jgreening QUOTE(BloodyStupidDavey @ Dec 28, 2007 ... Dec 28, 2007 - 11:56 AM Dr_Tweak QUOTE(Supersprynt @ Dec 28, 2007 - 1... Dec 29, 2007 - 12:38 AM Supersprynt Hmm, yes I understand. Stand alone much more worth... Dec 28, 2007 - 2:10 AM Supersprynt Well if you can't inference it from what we... Dec 28, 2007 - 8:57 AM lagos I thought about doing this in the past, but like j... Dec 29, 2007 - 6:00 AM WannabeGT4 I was curious about the mark up on this so I did a... Jan 2, 2008 - 1:30 AM BloodyStupidDavey QUOTE(WannabeGT4 @ Jan 2, 2008 - 6:3... Jan 2, 2008 - 4:38 AM WannabeGT4 QUOTE(BloodyStupidDavey @ Jan 2, 2008 - ... Jan 2, 2008 - 9:26 AM BloodyStupidDavey QUOTE(WannabeGT4 @ Jan 2, 2008 - 2:2... Jan 2, 2008 - 12:18 PM WannabeGT4 QUOTE(BloodyStupidDavey @ Jan 2, 2008 - ... Jan 2, 2008 - 1:00 PM Dr_Tweak QUOTE(WannabeGT4 @ Jan 2, 2008 - 9:5... Jan 2, 2008 - 5:10 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 4:10 ... Jan 2, 2008 - 5:35 PM Gary I used to make these adapters. I sold one for ... Jan 2, 2008 - 5:00 AM Dr_Tweak Woah, how did you find the PCB part number? I... Jan 2, 2008 - 11:49 AM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 10:49... Jan 2, 2008 - 12:43 PM Dr_Tweak No dude, I'm serious. I really want you to mak... Jan 2, 2008 - 1:36 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 12:36... Jan 2, 2008 - 1:54 PM BloodyStupidDavey QUOTE(WannabeGT4 @ Jan 2, 2008 - 6:5... Jan 2, 2008 - 4:09 PM WannabeGT4 QUOTE(BloodyStupidDavey @ Jan 2, 2008 - ... Jan 2, 2008 - 4:51 PM Dr_Tweak You're right, it's my attitude.
6GC Commu... Jan 2, 2008 - 1:57 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 12:57... Jan 2, 2008 - 2:38 PM Dr_Tweak Well done. Actually, I would be happy to admit tha... Jan 2, 2008 - 4:19 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 3:19 ... Jan 2, 2008 - 4:25 PM lagos QUOTE I get someone like you or Lagos saying, ... Jan 2, 2008 - 5:16 PM Dr_Tweak QUOTE(lagos @ Jan 2, 2008 - 10:16 PM... Jan 2, 2008 - 5:29 PM lagos QUOTEDon't take it the wrong way Lagos, we... Jan 2, 2008 - 5:46 PM WannabeGT4 QUOTE(lagos @ Jan 2, 2008 - 4:46 PM)... Jan 2, 2008 - 5:51 PM Dr_Tweak QUOTE(WannabeGT4 @ Jan 2, 2008 - 10... Jan 2, 2008 - 5:52 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 4:52 ... Jan 2, 2008 - 8:59 PM lagos QUOTEBy the way, if you ever have any broken plugs... Jan 2, 2008 - 5:59 PM Dr_Tweak Damn right, you know that when you call I automati... Jan 2, 2008 - 6:01 PM brianforster Still tweak vs the world I see
tweak you do exce... Jan 2, 2008 - 6:05 PM jgreening QUOTE(brianforster @ Jan 2, 2008 - 5... Jan 2, 2008 - 6:23 PM lagos QUOTEI am reminded of the time when I decided to i... Jan 2, 2008 - 6:44 PM Dr_Tweak How much? $7 each or something?
So if you a... Jan 2, 2008 - 9:03 PM WannabeGT4 QUOTE(Dr_Tweak @ Jan 2, 2008 - 8:03 ... Jan 2, 2008 - 9:15 PM lagos you rock. all of those come up as valid toyota par... Jan 2, 2008 - 9:43 PM Punch hey Doc if you find out how to st185-st205 let me... Jan 3, 2008 - 12:17 AM Supersprynt Woooow.
I think Doc Tweak is a real asset to this... Jan 3, 2008 - 1:12 AM Dr_Tweak QUOTE(WannabeGT4 @ Jan 3, 2008 - 2:1... Jan 3, 2008 - 7:02 AM DEATH QUOTE(Dr_Tweak @ Jan 3, 2008 - 7:02 ... Jan 3, 2008 - 7:22 AM |
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