HELP! 1UZ/MA61 ECU pinouts!

[UZA61]

Hi Guys

Im in a right pickle.

I have 1day left to get the wiring done on my 1UZ powered MA61. I need to connect everything in to start the engine and connect in anything on the car loom like dash etc

I really need Pinout diagrams for the 1UZ engine loom (96) and pinout diagrams for the two yellow connectors in the dash that i have left after removing the old engine from the MA61.

Im using a standard 96 ecu. We have done a bit of basic wiring and she is cranking over but there is no spark and i cant hear the injectors clicking so i assume the ecu isnt doing anything. So really need proper pinout diagrams.

I have a big car show to go to this weekend and it would be so awesome if i could get the car there but right now i have no clue about any of the pins im looking at.

Any diagrams or info on basics to get the car started would be greatly appreciated.

You can email anything you have to my email address [email protected] if you like.

Many Thanks

Lee

[Mos]

I really need Pinout diagrams for the 1UZ engine loom (96) and pinout diagrams for the two yellow connectors in the dash that i have left after removing the old engine from the MA61.

Im using a standard 96 ecu. We have done a bit of basic wiring and she is cranking over but there is no spark and i cant hear the injectors clicking so i assume the ecu isnt doing anything. So really need proper pinout diagrams.

Lee, a search can go a long way...
Second link from typing "MA61 pinout" into google:
http://forums.celicasupra.com/showthread.php?t=27692

Gives these:
http://www.yellowsun.plus.com/EWD/
http://pg.photos.yahoo.com/ph/deanjanderson/my_photos

There's also:
http://www.come.to/helene-and-matti -> Engine -> ECU connector pinouts -> 5M-GE which should be similar to, if not the same as, the Aus MA61 5M-E ECU connector - I can't comment on the UK version.

On the ECU connector there's basically little of interest - a starter signal, a power feed, a ground, a tacho, and a bunch of wires that go to the AFM which can be used if you need to run wires to that area of the engine bay (I use one of them for the fuel pump circuit FC pin).

The chassis connector has (on the Aus one) few wires and it's really no biggy to check them with a multimeter against the loom you pulled out of the car.

With the 1UZ ECU plugs, on the other hand, you may be on your own if it really is a 96 engine - what did it come out of?
There are diagrams on the lextreme website for the 90 LS400 and I'd start by checking the loom against that. Depending on which plugs your engine has it might be very similar to the 90 model, and the variations could probably be worked out from the loom, or from the half cut wiring if you got a half cut. I have a 97-00 LS400 wiring diagram, but I think the plugs and pinouts are completely different because it's a different version of 1UZ.

In essence, all you need to worry about is the injector and ignitor/coil power, the ecu BATT, +B, +B1, IGSW, MREL pins and the efi relay, bypass the fuel pump and it should start (you can even get away with no BATT and MREL as long as you power +B and +B1 externally). It depends how complete and how neat you want it to be - there's a ton of other stuff that should be hooked up that isn't critical to it running.

Mos.

[UZA61]

Mos, thanks for the quick reply and the useful information.

Yes its definately a 96 engine from a UCF20. Could i please get a copy of your 97-00 diagrams possibly? that would help a lot.

Many Thanks

Lee

[Mos]

They're in a book, so I can't pass them on easily. Could you take a photo of the ECU plugs and of the plug that runs from the engine loom to the chassis loom?
I'm almost certain the ECU plugs are different, but the engine to chassis loom plug should be the same although there will be wiring differences.
Mos.

[UZA61]

Unfortunately its dark outside so i will try and get pics for you tomorrow.

The problem we are having is that we have pulled the loom through the firewall into the passenger footwell, connected the plugs into the original ECU (3 plugs) and there is a 4th plug on the ECU that we dont know what it does.

Also on the engine to ecu loom a little further down from the ecu connectors there are 2 thick white connectors with many pins which we are unsure of also.

Coming out of the supra dash we have two orange plugs. We have pinouts for one of them but the other smaller connector we dont know about. This connectors does not go into the old 5M ECU so it must have connected straight to the engine loom.

This probably doesnt help but i thought i'd put the information up anyway.

Cheers

Lee

[CrUZida]

You looked at Andy's site ?
http://andy.supras.org.nz/

Apart from that I doubt our Aus MA61's have the same pinouts for the yellow plugs as yours.
I know all the JDM stuff is different to the Aus stuff, so I'd hazard a guess that the European stuff is different again.


You can sort it all out with the TSRM wiring diagrams, the original loom, the dash, a few hours, and some patients.

[UZA61]

Andrew mate, where can i get these TSRM Diagrams? Sorry im new to all this, i have mates doing the wiring if i can get the diagrams

[CrUZida]

Oh my, I thought every MA61 owner knew about the online TSRM.
No wonder you are struggling.

http://www.cygnusx1.net/Supra/Library/TSRM/MK2

[Karma Supra]

All the wiring pin outs I found last night In Lee's literature, (and on the net in my brief search) didn't actually have wiring pin outs, Did they change the way they wrote TSRMS? on the *a-70 one after all the pages of wiring diagrams they had all the multiplugs listed with all the pins clearly marked, the only pin outs I seem to be able to find are actually ECU ones, which as the engine harnesses are complete I am not so worried about those, more the car interface ones.

Admittedly am at work now so if you have posted those exact plugs my apologies, a forum with text I can just about get away with, witohut getting caught studying wiring diagrams with plugs I can't