ECU PCB

[MANDALAY]

Members that have been following my Rotrex installation are aware of my sometimes anal approach One of my objectives was a stealth install. Well its carried over to the wiring. As such after great pain i located the EXACT plug that is used on the Beams ECU , 5 PLUGS , well in actual fact a lot of Toyotas. However they were very dear and hard to get unless you order a few 100 but had to buy a pack of 4.
Well why did i choose the 5 plug well you will see
Final CAD drawings are nearly complete for the manufacture of a PCB that will
have the plug mounted to it and all 122 pins. 8 are being made as its using a whole board. Each pin will be extended to allow a Stand Alone wiring to be soldered to the board.
The centre plug not used is being used by me for all the extra sensors.
Some of the unused pins in the other plugs can also be used .
This way no messy wires all over the place AND A TIGHT CLEAN PACKAGE
So as such i have 3 spares.
MR 2 CONTROLS sell these at $150 USD.
No cutting of factory loom , just plug in.
Given im going to use a MoTec its not hard to guess whats happening behind the scene.

[puretone]

Originally Posted by MANDALAY

Members that have been following my Rotrex installation are aware of my sometimes anal approach One of my objectives was a stealth install.

YOU SAID IT FINALLY! ANAL! YOU ARE!!!! At least I didn't resort to it, to describe our dear friend MANDALAY...

Originally Posted by MANDALAY

Well its carried over to the wiring. As such after great pain i located the EXACT plug that is used on the Beams ECU , 5 PLUGS , well in actual fact a lot of Toyotas. However they were very dear and hard to get unless you order a few 100 but had to buy a pack of 4.

You found out just like I did about plugs in general....not only Toyota ECU plugs....you want one? Settle for a run of 100 to make it worthwhile for the manufacturer...

[MR-3vz]

I think you can get them very cheap... I found a place that sells the ecu plugs along with break out boards. I think the connector was 5 bux and the board was prob 40 or so if I remember properly. is this what your talking about???

The ones pictured are for a 3vz-fe

Ecu Plug


BreakOut Board


Megasquirt BreakOut Board with extra circuits



-J

[MANDALAY]

^ would have been good if it was that one, but unfortunately it isnt.
Beams 5 plugs 3 layers of pins 122

[MR-3vz]

Ahhh... i thought the 5number was a typo... Guess I cant be of much help there...

-J

[Roman]

The beams plug pinout configuration is the same as quite a few other cars of similar era, including subarus, mitsis and a few other non toyota things.

And of course obviously same plug configuration for other cars like Altezza, 1ZZ, etc.

So there's surely bound to be something 'off the shelf' to do what you want?

I'm keen as to get something like that, was just really planning on hack and slashing an ECU and loom from something like a 1ZZ, haha.

But if there was a tidy solution that wasnt too expensive, would be keen!

Are you gonna be selling your spare ones? Could be keen depending on price.

Also Mandalay, will answer your PM as soon as I've got time to check the wiring, sorry been a bit busy at the mo...

edit: From an old thread on another forum:

Those connectors are quite common and are shared by the RX-8 some late model WRXs, some other Subarus, and a few Daihatsus

Patch looms can be had from Index and ECUƒn�[ƒlƒXƒLƒbƒg�@-Ž©—R’·‚Å‚P–{‚©‚ç�»�ì- and you could repin one of these. However this is the expensive option, though they might be able to supply plugs.

Motec can supply the ECU connector backplane and circuit board for you to make up your own loom, but you'd still need the loom plugs.

[MR-3vz]

The application list for the site I used stocks these ecu connectors...

Applications

Honda 1992-1995 Civic, DelSol
1990-1995 Accord, Prelude


Acura 1992-1995 Integra
1991-1994 NSX


Toyota 1990-1995 Celica, MR2
1JZ engines
3VZ engines


Mazda 1990-1997 Miata
1989-1991 RX7
1993-1995 RX7
1991-1994 Protege

Mitsubishi 2nd Gen Eclipse/Talon
3rd Gen Eclipse
2002 Lancer 2.4/MT
003 Evo 8
1991-1997 300GT VR4


Dodge 1991-1997 Stealth TT

Ford 1991-1996 Escort GT


If any of these will work... Then I guess you can order the connectors from where I got mines.

-J

[MANDALAY]

Originally Posted by Roman

The beams plug pinout configuration is the same as quite a few other cars of similar era, including subarus, mitsis and a few other non toyota things.

And of course obviously same plug configuration for other cars like Altezza, 1ZZ, etc.

So there's surely bound to be something 'off the shelf' to do what you want?

I'm keen as to get something like that, was just really planning on hack and slashing an ECU and loom from something like a 1ZZ, haha.

But if there was a tidy solution that wasnt too expensive, would be keen!

Are you gonna be selling your spare ones? Could be keen depending on price.

Also Mandalay, will answer your PM as soon as I've got time to check the wiring, sorry been a bit busy at the mo...

edit: From an old thread on another forum:

Ill have 3 spare ones for sale.
Wait till i get the first one done and you will see where im heading

[MANDALAY]

Originally Posted by Roman

The beams plug pinout configuration is the same as quite a few other cars of similar era, including subarus, mitsis and a few other non toyota things.

And of course obviously same plug configuration for other cars like Altezza, 1ZZ, etc.

So there's surely bound to be something 'off the shelf' to do what you want?

I'm keen as to get something like that, was just really planning on hack and slashing an ECU and loom from something like a 1ZZ, haha.

But if there was a tidy solution that wasnt too expensive, would be keen!

Are you gonna be selling your spare ones? Could be keen depending on price.

Also Mandalay, will answer your PM as soon as I've got time to check the wiring, sorry been a bit busy at the mo...

edit: From an old thread on another forum:

I wish it was the same as the evo's as i would have bought the evo MoTec ECU.
These plugs are 100 % the same. with the appropriate gold pins

[MikeV]

Mandalay, I could have saved you some trouble - I have a small lot (30 or so) of Beams ECU connectors sitting around doing nothing. I also have a PCB drawn up in Eagle, but I never pulled the trigger and ordered boards. Also a case that they fit into. Oh well.

The boards pictured above are mine - they are only inexpensive because I've been trying to get rid of them.

[MikeV]

Oh, just a suggestion - space the output pins at 0.1" and use tyco screw-down terminals. Much, much, much easier than wire-to-board soldering. When I build Haltech harnesses I either silicone or hot-glue the wires in place afterwards for security. The terminals are annoyingly expensive at US$.25 per terminal, but that isn't exactly going to show up in your build budget.

[MANDALAY]

Thanks for the suggestion
Very nice boards.
What im doing is a simple patch board. There is a reason for it.
If you do have the 122 pin connectors let me know.
If you could post a pic would be great

[MikeV]

I have 2 different styles of 122-pin socket, this is the one I have the most of:

[MANDALAY]

Thats the one and
Where were you a week ago !
Dam . I think you PM ed me some time ago but i lost your contact

[MikeV]

Don't worry, next time you do such an elaborate build I'll be there.

[MR-3vz]

Ha... Who'da thunk it... I didnt know you were on the MR2 board... Im glad I supported a board member and also possibly reconnected a member in need...

-J