Big port coil/ignitor wiring Q's

[FUTO_GT]

Hey, can anyone answer this for me, 4AC - 4AGE 16V AE82 bigport, the coil and ignitor assembley has a big green 4 PIN plug, the colours are
From plug - to engine Loom
PINK - 10PIN ECU plug No. 8 pin (black-orange wire)
BEIGE - 12V IGN/RUN (Thick Black-red)
WHITE - 18PIN ECU plug No.5 pin (black-yellow)
YELLOW - ???(black-orange tab wire)

Where does the last one go on the loom? Is it for Tacho? Is it just 12V IGN? or what....

[Jonny Rochester]

AE82:
Black/Orange - Ignition 12v from ignition switch
Black - to tacho and A/C
Black/Yellow - IGF to ECU
Black/LightBlue - IGT to ECU

[FUTO_GT]

I think the guy I got it off said it was a JAP AE82, has orange label ECU, so maybe thats why the colours are off....
I've traced all these wires to their positions.. except 1 of course

BEIGE - 12V IGN/RUN (Thick Black-red)
PINK - IGT 10PIN ECU plug No. 8 pin (black-orange wire)
WHITE - IGF 18PIN ECU plug No.5 pin (black-yellow)
YELLOW - ???(black-orange tab wire)

So the last one must be Tacho as I suspected!

Thanks for that Johnny!

Also, The 4AC loom has a Black/White wire from IGN start, to the starter motor solenoid... This is obviously the wire that I use as STA start signal for the COR and the ECU yeah?

[Nikkojoe]

Black yellow - white - IGF
Black orange - beige - 12V iginition
black with brown dots (what you say is orange) - yellow - Tacho
Black blue - pink - IGT (in your case its the black red wire).

The STA from the 4ac loom can be used for COR and ECU, alternatively you can wire it from your key barrel. The factory 4age loom should already have STA coming into the interior with the Black-red ignition wire for +B and +B1 (AE82 Spec).

[FUTO_GT]

Do I have to use black/brown for tacho?
Can I hook the tacho up to the coil.... like the way the stock 4AC loom does?

[Nikkojoe]

Yeah you can, and you will find they are the same colour wire.