ECU pinouts Gen 3 1GGZE (Definitive?)

[infotechplus]

I rec'd the attached XL spreadsheet from Adam (Bullfrog) which contained the ECU pinouts for the Gen 3 1GGZE, almost complete with colour-coding of the wires and plugs.

Looking at my loom, which was intact for the ECU plugs labelled "R" and "S", I was able to confirm most of the colour-coding with a few corrections. Ditto for the plugs labelled "Y", "W" and "X". :)

Looking at my ECU plug labelled "O" it had been cut about 50mm up the wire so I was able to fill in the wire colours for this plug. :mad:

All the corrections and my additions are in bold red on the spreadsheet.

Plug "Y" - changes to pins 12 and 13

Plug "X" - changes to pins 2 and 7. 12 was BLANK on my plug.

Plug "W" - changes to pin 4, and pin 3 is not BLANK (pale grn/ylw stripe)

ECU Plug "O" - all wire colours added

ECU Plug "S" and "R" not checked (but I will do so ASAP).

If anyone would like to comment and/or confirm these pinouts I would welcome that as I am about to look at the wire-up in the next day or so. I've converted the file to PDF for download from my website (56Kb).

http://users.tpg.com.au/adslljrb/rn85lux/Ecu pinouts 1ggze Gen3_amended.pdf

cheers,

Peter

[Bullfrog]

Hi All,

Well after some mucking around some and little bit of time in the shed with the multimeter i think i have sorted out a wiring diagram modified from a previous post for the 1ggte gen3 engine.
I have done an edited version for the 1ggze gen 3 as i couldn't find one anywhere so here it is i know there are some lecko's and people who have done a conversion with the engine and may know the wiring backwards on the threads so if you could take a couple minutes to check it out and edit or let me know if there are any problems with it .

Thanks all and hope it helps With your conversion's

http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/th_1ggzegen3wiringadsdiagramP4.jpg (http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/1ggzegen3wiringadsdiagramP4.jpg)
http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/th_1ggzegen3wiringadsdiagramP3.jpg (http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/1ggzegen3wiringadsdiagramP3.jpg)
http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/th_1ggzegen3wiringadsdiagramP1.jpg (http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/1ggzegen3wiringadsdiagramP1.jpg)
http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/th_1ggzegen3wiringadsdiagramP2.jpg (http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/1ggzegen3wiringadsdiagramP2.jpg)

Also here is an updated version for the ecu pinouts i have pretty much just changed the plugs and added the auto plug aswell.


http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/th_1ggzegen3ecu-plugpinouts.jpg (http://i35.photobucket.com/albums/d179/becnads/HiluxConversion/1ggzegen3ecu-plugpinouts.jpg)

[infotechplus]

Dude, this is fantastic except as they are above even when printed in HiRes are not all that readable.

Can you post the last graphic in its original XL format?

The other 4 wiring schematics will need to be much larger in filesize for them to print out and use. Or save them in a higher resolution format like TIFF or BITMAP.

Can you email them to me?

Cheers,

Peter

[infotechplus]

Here are the Hi(gher) Resolution images of Bullfrog's wiring for the Gen 3 1G-GZE. I've used Adobe Photoshop to clean up some of the lines and the labels, but the credit should go to Bullfrog (Adam):

You can download them from my website:

1G-GZE Wiring Gen 3 - Page 1 - JPG - 360Kb

http://users.tpg.com.au/adslljrb/1GGZE Wiring/1ggze gen3 wiring ads diagram P1.JPG

1G-GZE Wiring Gen 3 - Page 2 - JPG - 454Kb

http://users.tpg.com.au/adslljrb/1GGZE Wiring/1ggze gen3 wiring ads diagram P2.JPG

1G-GZE Wiring Gen 3 - Page 3 - JPG - 471Kb

http://users.tpg.com.au/adslljrb/1GGZE Wiring/1ggze gen3 wiring ads diagram P3.JPG

1G-GZE Wiring Gen 3 - Page 4 - JPG - 294Kb

http://users.tpg.com.au/adslljrb/1GGZE Wiring/1ggze gen3 wiring ads diagram P4.JPG

1G-GZE Colour Coded Wiring and Plug Spreadsheet

This is converted to Adobe PDF - 104Kb

http://users.tpg.com.au/adslljrb/1GGZE Wiring/Ecu pinouts 1ggze Gen3.pdf

Cheers, and +rep to Bullfrog for his outstanding effort.

Peter

[77GZE]

Big help guys, good effort :)

[infotechplus]

Not being electrically minded, can someone explain what the symbols in this wiring diagram are?

http://users.tpg.com.au/adslljrb/wiring_q.jpg

Cheers

[Grega]

peter - they're normally connectors mate.

[Bullfrog]

Grega is spot on peter the one you are pointing at is pin number 2 in plug 2C to be exact.

[Mr Ed]

I popped the cover of my old 1G ECU to check the pinouts. The codes are printed beside each pin on the PCB. No guess-work if you do it that way. ;)

[infotechplus]

I popped the cover of my old 1G ECU to check the pinouts. The codes are printed beside each pin on the PCB. No guess-work if you do it that way. ;)

Yeah, I had a look and confirmed all the pins in Bullfrog's ECU schematics. Great stuff.

Here's a couple of questions I'd like answered if possible.

I want to connect a Boost gauge. Can I connect it at this point on the engine?

http://users.tpg.com.au/adslljrb/plug_id/boost.jpg

Where do these two wires go? It comes up from underneath the AC unit (two black wires) to a grey plug receptacle. Into this is a blue plug with a Dark Green/White & Dark Green/Yellow wires. Where do I connect the two Dark Green wires? I noticed the same connector on my friend's engine so they must connect to the original 22R loom on the driver's side. His plug was Black/White & Red/White.

http://users.tpg.com.au/adslljrb/plug_id/acwires.jpg

I got a fuel pump resistor from a Cressida. It has three wires and a "6" stamped on it. I've mounted it and there is a plug on the 1GGZE loom that is the same but a different colour. Is this where it connects or is that too easy? Is it the same as the one Bullfrog showed me with two wires and a "4" on it? I noticed at Pick 'n' Payless there were three variants with another Toyota having 4 wires.

http://users.tpg.com.au/adslljrb/plug_id/fuelpumpresistor.jpg

http://users.tpg.com.au/adslljrb/plug_id/fuelpumpresistor2.jpg

Cheers,
Peter

[Bullfrog]

infotechplus,

I can answer one of your questions about the boost gauge one at the moment would have to look into the other ones i think you will find that the hose you are looking at goes to your charcaol canester its on the wrong side of the s/c as there should be no boost that side. As for where to go for a boost gauge no idea i know when i turn the s/c over by hand there is pressure in the pipe that runs infront of the head, got know idea what it is for yet. not sure if the standard car had a boost gauge so it may plug and play so to speak.

[Bullfrog]

Sorry mate just had a thought.. Do you have a/c in the ute already if so check the colors of the wires that come from the ac switch in the dash i seem to remember those being green in my lux will have a look over the weekend.

[infotechplus]

infotechplus,

I can answer one of your questions about the boost gauge one at the moment would have to look into the other ones i think you will find that the hose you are looking at goes to your charcaol canester its on the wrong side of the s/c as there should be no boost that side. As for where to go for a boost gauge no idea i know when i turn the s/c over by hand there is pressure in the pipe that runs infront of the head, got know idea what it is for yet. not sure if the standard car had a boost gauge so it may plug and play so to speak.

No, the charcoal canister tubing is on the right angle pipe to the right of the question mark, above the larger pipe (according to another to Toymodder) and I think this is correct.

The pipe I'm using was suggested by another person and SSS Automotive. I just wanted to confirm.

[Edit] Well I think you are right Adam, as this photo confirms (from Glen's Celica 1GGZE install).

http://users.tpg.com.au/adslljrb/plug_id/where.jpg

I want to run a Vacuum gauge as well as the Boost gauge so I'll use a Tee piece to split the hose under the dash.

Cheers,

[infotechplus]

Sorry mate just had a thought.. Do you have a/c in the ute already if so check the colors of the wires that come from the ac switch in the dash i seem to remember those being green in my lux will have a look over the weekend.

The AC switch on the dash has 5 wires:

Blue w/White stripe
Green
White w/Black stripe (2 of these)
Black w/Red or Brown stripe

Cheers,

[Gleno28]

I've got my boost/vac gauge running out of the Power steering?? vac point at the front of the manifold. Not sure if you can t piece it but it works fine from here.

Glen.

[infotechplus]

I've got my boost/vac gauge running out of the Power steering?? vac point at the front of the manifold. Not sure if you can t piece it but it works fine from here.

Glen.

That looks like a good spot but given that the brake booster runs from the larger pipe below the right angle smaller pipe (which I would connect my boost gauge to) doesn't it follow that the smaller pipe also is suitable as a vaccum outlet?

If I switched to where you suggest Gleno what do I do with the other outlet?

Peter

[Gleno28]

Hey,

Yeah, the smaller pipe (with the brake boost) runs pre supercharger vacuum full time (top manifold), no boost, that's why you'll have to get a spot on the bottom manifold for the boost gauge.

The other small pipe with the brake vac i'm using for aftermarket cruise vacuum, could use for vac gauge too, but my boost gauge also does vac from the bottom manifold. Is it all getting there mate?

Glen.

[infotechplus]

So in this first photo I have the charcoal canister connected to the port on the top of the manifold (as was pointed out earlier):

http://users.tpg.com.au/adslljrb/rn85lux/canister.jpg

Now I have taken others advice and connected the boost gauge up to the port on the front of the manifold (as indicated by the Tee piece and the green cable ties)

http://users.tpg.com.au/adslljrb/rn85lux/boost.jpg

Now that leaves me with the top port above the brake booster. Are you suggesting that is a vacuum gauge possibility? If not where should I connect it to (given that in one of the photos I posted above the connection seems to run down behind the engine)? Or should I just block it off!

http://users.tpg.com.au/adslljrb/rn85lux/leftover.jpg

Thanks for your help,

[Gleno28]

Yes, Vac gauge or block off for the one with the brake booster vac.

Here's another pic of the boost gauge location i'm using, from the bottom hole on the bottom manifold (brass fitting in pic)

Glen.

[infotechplus]

These photos identify a number of connections on the 1GGZE loom.

For information only.

Throttle Sensor
Part No. 89452-12040 [198500-0330]

http://users.tpg.com.au/adslljrb/1GGZE wiring/throttle-sensor.jpg

Distributor

Yellow wire is RPM signal

http://users.tpg.com.au/adslljrb/1GGZE wiring/distributor.jpg

Idle Speed Control Valve

http://users.tpg.com.au/adslljrb/1GGZE wiring/airflow.jpg

http://users.tpg.com.au/adslljrb/1GGZE wiring/airflow2.jpg

Water Temp

http://users.tpg.com.au/adslljrb/1GGZE wiring/watertemp.jpg

The single pin connector (white plug) is power, and the water temperature sensor is directly above that (green plug). Can someone identify the uppermost connector (grey plug)? Thanks.

Peter

[Bullfrog]

infotech that is the temp sensor for your cold start injector.

[infotechplus]

infotech that is the temp sensor for your cold start injector.

Hey Mr. Bullfrog, where ya been?

Have made very little progress on the wiring for almost 3 weeks now. I'm wondering if I'm every gonna finish this thing.

On those 4 plugs you marked Auto A, B, C and D people tell me they are only to do with the automatic gearbox and not needed on the manual. What is your take on this?

How's your conversion going? Progress?

Cheers,

Peter

[Bullfrog]

hi peter,


conversion hmm yeh i remember that.
just been flat out at work and other hobbies etc etc.
will update my conversion page next.
You are correct about the auto plugs to a certain extent as you will need to fool the computer into thinking it still has one to run (someone jump in i am incorrect) ie auto will only start in neutral/ park. and may have a engine rpm cut in nuetral.

[Gleno28]

Hey,

On those pics mate, the plug labeled 'Air Flow' is the ISCV (idle speed control valve), will probably need a clean on your engine too! mine was grose.

I've done some checks of my ECU/Loom plugs as they are a bit different to all the diagrams i can find. As far as i know, the engine was from about a 1990 Crown. the 16 differences written on the circuit board are:

At Plug Q:
7. SP2 mine = empty
8. ACM mine = ACR
12. +B1 mine = B
13. +B mine = B1
14. M mine = empty
21. P mine = GP

At Plug R:
7. TT mine = EC1
14. OD2 mine = EC2

At Plug S:
8. S3 mine = NEO
9. S2 mine = ES2
10. S1 mine = ES1
17. S mine = empty
18. L mine = empty
22. STP mine = ES3
23. VS1 mine = ABV
24. VS2 mine = ABP

So.... any ideas people??? As you can see, some are pretty close (in function) but some are way off. Has anybody seen this before????

Cheers
Glen.

[Bullfrog]

well i have no idea ! have looked through all my toyota abreviation's but most of them aren't on there. i could hazard a guess on some of them.

[infotechplus]

You are correct about the auto plugs to a certain extent as you will need to fool the computer into thinking it still has one to run (someone jump in i am incorrect) ie auto will only start in neutral/ park. and may have a engine rpm cut in neutral.

I checked on the 7M-GE engine and can confirm that those four plugs all go to the auto gearbox, and therefore of no use to me.

However, you have thrown a spanner in the works regarding the ECU expecting those connections. What am I to do now? Do they need to be connected to something or just terminated, or disconnected.

Cheers,

[BJ_70]

This enquiry is targeted to all of the guys involved in mapping the Wiring Diagrams for the IG-GZE Engine. I was extremely relieved to have found this thread and commend you on the good work, especially Bull Frog.
I have that engine running in a 1988 Crown Royal Saloon which stalled in July of 2008 because of a broken Coil Pack bracket (The break severed the grounding to the three Coils) and although the grounding has been restored, the car has refused to start since then. I have used Bull Frog's Schematic Diagrams to try and trace the wiring fault without success.
To date, I have replaced the ECU, the Crank Angle Sensor, the Igniter and Fuel Injectors with the same result. That result is that the Fuel Injectors are only pulsing once when you tumble the ignition switch and then cease to pulse even when you continue cranking the engine.
Any ideas from anyone as to why that is happening?

BJ_70

[moggie]

Sorry off topic
I cant believe that the injectors are mass fired in two banks ( 3 injectors fire at a time) :s
Thanks for posting these up they will become very helpful to me.