Ae86 loom Conversion to bigport ecu NEWB

[Marcelt501]

Hey guys sorry about this post, prob been done to death ...I recently bought a loom and ecu from just jdm spares in bris. the engine harness has 2 plugs near the edu. 2 plugs go into the ecu the third does not. from my research i know this plugs into the body control loom. Im just trying to find out what wires are what on that spare connector and wire what needs to be, i know theres a constant 12v for the ecu and a fuel pump signal wire the 4age is going into a ke25 so will be pretty basic install. I looked up the write up on this but the page is no longer operation cheers in advance .

[jondee86]

This plug ??



Cheers... jondee86

[parrot]

Have a look at the diagnostics manual, should tell you all you need to know.

http://www.aeu86.org/technical/ae86-manuals/

Edit, the missing 14 pin body plug into the ECU is the same SV21 camry with 3SFE. Make sure it's yellow

Or of course an AE82 twin cam

[Marcelt501]

cheers mate thank you , now have to decide to either go efi or webbers , love the oldskool weber look plus sound, but efi will have more power better fuel economy and cold starts will be heaps better any ideas people what should i do?

[Marcelt501]

I've looked at the diagrams have no idea where the colours and plug diagrams are located used to mazda ones they have the pins with the numbers and colour etc?

[parrot]

Assuming you are looking at the diagnosis manual, pages 1-12 & 1-17

[jondee86]

Just in case we are at cross purposes here... the pic I posted
above is NOT the third ECU plug...



It is the extra plug that comes with the engine loom and plugs
into the junction box alongside the ECU. And if this is the plug
the OP was referring to, then this...



... might help you out

Cheers... jondee86