How to wire a 4age Bigport Engine

Greetings All,
I have put together this video to assist you in wiring a 4age engine into a different car.
I go through the following items.
How to identify your 4age type (bigport vs smallport, 20v vs 16v etc)
How to read a wiring diagram
How to locate ECU Pins
7 Sections of wiring
Powering of ECU
Powering of Injectors / Coil
Fuel open circuit relay wiring
Starter motor wiring
Alternator / Charge Circuit Wiring
Dash warning lights
Speed Sense / Input to the ECU
I hope you find the video useful in learning engine wiring. I did not want the video to be a step by step guide as you will not learn much from it.
I will include links on where to download the wiring diagrams from in the comments. There will be further videos on the differences between the 20v and 16v wiring and additional sensors etc.and what each of them do and how to test them.
I have spent many hours on this video, so please like and subscribe to the channel.
Cheers,
AE86DrivingClub

[@alexscott9195]

Dude, literally doing Gods work in a post-forum world. Great stuff!

[@AE86DrivingClub86]

Forums aren't completely dead .. we still have one

[@BoogalooShrymp]

Cool vid. wish this was around back in the day!

[@AE86DrivingClub86]

Videos looked like they were shot using a potatoe back in the day...

[@lucasdomars5549]

Awesome video! Learnt a lot from it and have probably watched it 20 times over

[@AE86DrivingClub86]

Lucas Domars thanks for the feedback. Glad you found it useful

[@jamieburgess9915]

Great Video! So helpful and easy to understand. Much appreciated

[@ItsOnlySmellz787]

bloody excellent video mate. Cheers

[@Bredmirror]

I soon will try to install a bigport bluetop 4AGE from an ae82 into a 4AF AE92. My main concern is the wiring and the exhaust.

[@Torresmeza9]

Thank you 🙏🏼

[@ericohman]

Really enjoyed the video! Regarding speed sens wire. Does it need to be connecting for AE92 ECU (1988 7-rib bigport) sitting in AE86? Did both AE86 and AE92 cluster send speed signal?

[@AE86DrivingClub86]

It doesn't have to be connected to run, but will throw a check engine light from time to time. I suggest on an ae86 you connect it. I've got a video which outlines the pin on the adm cluster. kzbin.info/www/bejne/hGi5m3yblJmro8U Watch the adds to show true appreciation or skip through to about 3:30 if you are bored.

[@noddylloyd]

Hello. I know this video is old now and you're probably sick of questions but your video is really helping me with my engine swap. I have a question though... Does the VSV and idle up computer need 12v ING power? I can't see where it would get it from on the loom but the diagram shows it splicing off of the ECU switched ING feed and fuel pump feed. Many thanks.

[@fitz12]

Could you please link where you got the wiring diagrams. Awesome video.

[@srspammenot]

Tom Fitz get the book , wiring pages are data miners

[@sebast1annn]

At the very end (14:30), you talk about connecting the speed signal to the ECU. I put a bigport 4age into an 81 corolla wagon and my engine isn't revving past 4k (Maybe my aftermarket tacho isn't calibrated properly?). Wondering how to find the speed signal from the cluster of an older corolla to send to ECU

[@AE86DrivingClub86]

If the engine isn't reving past that , there is likely a timing issue or fuel supply problem. If the tacho isn't calibrated, you'll know by the sound of the engine what is wrong. I'll do a video on how to get the speed signals working in a few weeks.

[@sebast1annn]

@@AE86DrivingClub86 Thanks for getting back to me! I've been chasing the issue for a few weeks and finally figured out it was the tach. Previous owner had installed it, so I just trusted the way he set it up, but turns out it was set to 8 cylinders (he had the same 4k issue as me on his 20v and thought it was a limp mode lol). To find the switch, I had to take the thing apart and flip two switches on the circuit board..! Thanks for the help, your videos are the best!

[@maddog717]

Hi, what needs to be done to install the efi main relay in the factory e7 fuse box? Thanks

[@AE86DrivingClub86]

You'll need to add pins with Constant power, Ignition power and the output to the Injectors / Igniter into the fuse box. Look at the top and you'll see the pin numbers that correspond to the pins on the side and front.

[@mujahiedarendse1597]

hi hope u well, thanks for ur explanation on how the diagram works its been very useful, where can i get that specific diagram pls

[@AE86DrivingClub86]

There are 2 parts to the diagram, that you may download from the links below. www.ae86drivingclub.com.au/images/AE82_4age_Diagram_1.jpg www.ae86drivingclub.com.au/images/AE82_4age_Diagram_2.jpg

[@robhall7192]

where can I find the early big port diagram you reference above? apologies as I did not see a link.

[@AE86DrivingClub86]

It's linked, but if that link fails rollaclub wiki has them

[@ShaunRenier]

Thanks for this video but i got a problem on my ae82 the injector is only firing 2 to 3 sprays and then nothing is like it only start for 1 to 2sec the shut off any help plz

[@AE86DrivingClub86]

What colour are your injectors?

[@MrUnbeatableable]

Hi, i am swapping an ae82 bluetop and harness into an ee80 body, have some issues with the wiring, is there any way i can contact u directly to let you see what's wrong? I think there's a problem with the harness

[@AE86DrivingClub86]

We are on Instagram, FB etc. Links are in the video end credits

[@skrachvynl]

Is there a company that sells the pigtails or ECU connectors?

[@AE86DrivingClub86]

Bigport I have never seen for sale, but smallport and the 20v ones sq engineering sell them

[@yvesmarie2888]

Do u have a video about the vacum lines

[@AE86DrivingClub86]

Not yet , but we can do one easily.

[@yvesmarie2888]

I will like to hook up my 4age BT vacuum line but i dont no where they go.

[@PlayVibesPak]

bro please tell me about TVIS wiring i am finding from many day how to connect TVIS wire i didnt find TVIS grip in my wiring of 4age 16v bigport

[@AE86DrivingClub86]

TVIS Wiring is at 3:48 . Ecu provides an earth to the solenoid and it has ignition power

[@PlayVibesPak]

@@AE86DrivingClub86 thanks brother can i have your instagram or something other so i can send you pictures then i can clearly understand please 😥🙏

[@AE86DrivingClub86]

@@PlayVibesPak it’s at the end of all our videos

[@conmyroberts5013]

How do I tell the difference between the silver top ecu and the black top ecu,and can the silver top wire as a black top

[@AE86DrivingClub86]

Silvertop have a orange sticker on them, blacktop is black with white writing. You can run a silvertop with blacktop ecu and vice versa if you swap the map sensor for afm etc. all other sensors and injectors etc are identical.

[@conmyroberts5013]

@@AE86DrivingClub86 thanks for the information

[@danii2975]

How to wired the igniter and distributor

[@AE86DrivingClub86]

We have started working on this now

[@stuartboyd2832]

Anyone in Sydney keen to wire up a ae71 with 4age will pay cash

[@AE86DrivingClub86]

Where abouts in Sydney? What 4age Bigport / Small port / 20v etc. I could do it depending on the LGA / lockdown restrictions

[@andyfaisal4092]

How to wire a 4age 20V Blacktop 6 speed Engine

[@AE86DrivingClub86]

Planning on doing it when I get time