2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

I need a ecu diagram

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Old Jun 9, 2005 | 03:18 AM
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From: california
I need a ecu diagram

i have a 65 sprite i put the motor and trans from a 91 convertable and i need a ecu wiring diagram to hook up the ignition fuel pump and various other parts....anyone have a electronic version? or a good site to visit? or maybe a old factory manual that you want to sell?
thanks,
mike
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Old Jun 9, 2005 | 10:27 AM
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Let us know if you ever find one. I've been looking for an internal ECU schematic for years now. I'd love to map that thing out one of these days...
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Old Jun 9, 2005 | 11:06 AM
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From: Orange Park FL (near Jax)
The factory manuals - fuel & emmissions section.
I have a copy at the link in my sig.
Download & print what you need.

Wayne - I think he's looking for the external hook-up information.
The internals are a mystery.
The Rtec guys know as much as anyone.
I have traced a little of the internals, to replace one of the darlingtons, when troubleshooting a NA Kouki aux port problem.
That's my limit.

Last edited by SureShot; Jun 9, 2005 at 11:13 AM.
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Old Jun 9, 2005 | 11:20 AM
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From: Orange Park FL (near Jax)
BTW I have a 64 Midget, and an old 12A & tranny-- Hmmm.
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Old Jun 9, 2005 | 11:54 AM
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ive got a pic of the ecu pinouts, if that helps? is that what u need or do u want an actual INTERNAL diagram like of the cicuitry inside? cuz i dont think anyones ever seen those internals and come out alive lol
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Old Jun 9, 2005 | 01:56 PM
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From: california
i need the external hookup like what pin goes to what coming off the ecu... and btw that 12a will fit much easier than my 13b did...and if you have some extra parts for the car there are a few things i need send me a pm and we can work it out

thanks,
mike
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Old Jun 9, 2005 | 02:07 PM
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External hookup info is in the factory service manuals (see FAQ stickie) and to a lesser extent, in the Haynes manual.
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Old Jun 9, 2005 | 03:18 PM
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ok i checked out the service manual but it doesnt say which pin goes to where it either shows a generic flow or current from batt through ecu to whatever part...bassicaly i have the stock ecu and i had to cut all the crap off of it that went to the body such as ignition, fuel pump, fuses, ect...the two conectors for the engine harness have stayed intact but the third connector has been cut...if anyone knows where the wiring diagram is that would be great i need something that shows the ecu pins and what they go to
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Old Jun 9, 2005 | 04:09 PM
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There is no wiring diagram for the series five online. There is a series five fsm that has the output/input of each pin on the ECU. It's located in the Fuel Section under CONTROL UNIT.

You really, really NEED the wiring diagrams and they can be bought seperatly from the fsm from MAZDATRIX for about forty bucks or so.

Again, the wiring diagrams that your NEED are not available online.
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Old Jun 9, 2005 | 04:38 PM
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Originally Posted by HAILERS
There is no wiring diagram for the series five online. There is a series five fsm that has the output/input of each pin on the ECU. It's located in the Fuel Section under CONTROL UNIT.

You really, really NEED the wiring diagrams and they can be bought seperatly from the fsm from MAZDATRIX for about forty bucks or so.

Again, the wiring diagrams that your NEED are not available online.
ok thanks i must have missed that before when i was looking for it i think it might work ill go try it out in a few days
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Old Jun 9, 2005 | 04:48 PM
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Originally Posted by mr_myself
ok thanks i must have missed that before when i was looking for it i think it might work ill go try it out in a few days
I might have something that can help you....

For some reason I ended up with an old FCON harness....

Basicly it is a harness that plugs into the stock ECU and then goes to the FCON and back into the engine harness.

So, it has the female plugs that go into the ECU.

https://www.rx7club.com/showthread.p...hlight=harness

That thread has the pictures of it.

James
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Old Jun 9, 2005 | 06:49 PM
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I can map the ECU schematic using the Huntron Scanner. But I have never personally seen the ECU schematic.
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Old Jun 9, 2005 | 08:12 PM
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From: california
Originally Posted by J-Rat
I can map the ECU schematic using the Huntron Scanner. But I have never personally seen the ECU schematic.
i have no idea what you are talking about
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Old Jun 9, 2005 | 08:18 PM
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Originally Posted by mr_myself
i have a 65 sprite i put the motor and trans from a 91 convertable and i need a ecu wiring diagram to hook up the ignition fuel pump and various other parts....anyone have a electronic version? or a good site to visit? or maybe a old factory manual that you want to sell?
thanks,
mike


You asked for it her it is. Diagrams

if you like my site join it, is free, I only have on member right now.
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Old Jun 9, 2005 | 11:11 PM
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Originally Posted by Curtisleeyoung
You asked for it her it is. Diagrams

if you like my site join it, is free, I only have on member right now.
There are no series five wiring diagrams on that site...
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Old Jun 9, 2005 | 11:31 PM
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Originally Posted by mr_myself
i have no idea what you are talking about

Sorry.
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Old Jun 10, 2005 | 01:56 AM
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The S5 wiring diagram manual is not available online, but there's a perfectly good S5 ECU wiring diagram (with pin layout) on page F1-8 of the FSM's EFI chapter. The only thing missing is wire colours. There's also more ECU info on page F1-79.

If you want wire colours, you going to have to buy the wiring diagram manual.

http://www.mazdatrix.com/getprice.as...5-022G-9999-91

Last edited by NZConvertible; Jun 10, 2005 at 02:05 AM.
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Old Jun 10, 2005 | 02:07 AM
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I have the book NZ speaks of.....

I will be home in a week and I can snap pictures of what ever you need from it....

James
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Old Jun 10, 2005 | 06:51 AM
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From: FORT WORTH, TEXAS,USA
**********page F1-8 of the FSM's EFI chapter. The only thing missing is wire colours. There's also more ECU info on page F1-79.8***************

My bad. I looked and indeed there is a workable diagram for series five on that page.
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Old Jun 10, 2005 | 06:57 AM
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Did Hailers make a boo-boo? And NZ caught him, to boot...

It's gonna be another good day

You know, that's something we need to sticky- good scans of both the cars' schematics (the "important" ones, anyway). Get right on that, Wankel...
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Old Jun 10, 2005 | 09:28 AM
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I don't have a scanner

And it would be weird because those pages in the book are fold out. Three page fold outs....
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Old Jun 10, 2005 | 11:36 AM
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From: FORT WORTH, TEXAS,USA
Originally Posted by WAYNE88N/A
Did Hailers make a boo-boo? And NZ caught him, to boot...

It's gonna be another good day

You know, that's something we need to sticky- good scans of both the cars' schematics (the "important" ones, anyway). Get right on that, Wankel...
Pardon me for saying so, but your first answer on this thread was a bit,"WANTING". Now's your big chance to be a good sport and post all the series five shcematics.
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Old Jun 10, 2005 | 11:40 AM
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I am on the road 10 days in a row and spend half of it in a hotel......

So, I am bored as hell....way too much.

Next time I am on the road.... I will take pictures of every single page in that book and host it up on photobucket or something....

Its a 91 book.

James
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Old Jun 10, 2005 | 12:53 PM
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Originally Posted by HAILERS
Pardon me for saying so, but your first answer on this thread was a bit,"WANTING". Now's your big chance to be a good sport and post all the series five shcematics.
You know, I remember now that one of your guru traits is...

Posting up schematics and pictures on the threads!!! And, if I recall with clarity things that happened more than a day ago (not one of my strong suits), YOU have the neat-o color wiring diagrams for the S4s. Am I right? But of course...

Therefore, using discriminatory logic (mine), I nominate YOU (Hailers) to take on the Herculean task of scanning the wiring diagrams for our S4s, and we'll just have to find someone else to perform the same magic for the S5s.

I think this will be a monumental undertaking that will produce many happy returns. Just think of all the times I won't have to run out to my car to get the schematics to help someone out now
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Old Jun 10, 2005 | 01:24 PM
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This is better than Survivor
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