ok....

im getting really really discouraged with the information im finding' or lack there of as of late.

the mk2 guide that is supposedly outdated, is infact more correct than the other anywho

two questions

i have a KA24e

all the mk 2 guides are for a ka24de

SO

i need a place to connect the brown wire (which needs fused 12v power, to run the IACV

AND a place to connect the black/yellow wire which is the air regulator.

no one seems to know where these go, and yet their cars somehow run

any help would be lovely ya'll

I'm not entirely sure what I'm seeing here...

The brown wire just goes to the brown S12 wire. If there is no brown wire, you could use the same IGN ON wire used for the black/yellow (which is black/red on the S12)

I'm fairly sure I ran all of my 12v wires off the coil wire, and then had a constant 12v which was the red wire went straight to a battery connection, So I only had 2 connections for 12v power.

alright... ill get some pictures of what i mean tomorrow.

that would be correct that i do not have a brown wire on the s12 side; i do have a black/red which goes to the red s13 wire for ECU backup power

could i use the second coil wire since there are two? as a source for 12v power

the 87 harness only has one 8 prong plug, while the earlier cars have a 8 and a 6 prong plug

sorry edit*

yes, get pics.

any 12v key on source for the brown and black/yellow S13 wire will suffice, so that idea of using the other coil wire is fine.

if you are confused on wiring, you can always ask me directly in regards to the writeups. mk2 stuff isnt quite as detailed as the others. pics are always good.

sterlings guide is spot on for the most part.
if you search for MY ka help threads your get answers to all the odd little questions about the ka swap. once i got it right in my head it only took about 2 hrs. Jay and sterling can help alot.

i did see your question thread; most of your questions i figured out on my own.

so

i attached the second coil source to the brown and black/yellow and now the fuel pump doesnt prime like it did before i tried that




camera is outside' perhaps thursday i will have a few hours to tinker with it

That sounds normal to me. Once the ECU is hooked up, the fuel pump won't turn on unless some sort of control relay is hooked up to it.

Is the fuel pump grounded out? or are you using a relay

I grounded mine out in the engine bay. Mine was a white wire

theres 2 brown wires i thought... my motor started without either, i hooked one to either hti and miss till ti idled better

well i have a mk 2 harness so its got a factory relay

so there is no white wire in the bay

it was priming beautifully before; ran for 10 seconds kicked off

car turns over

no start?

the brown wire goes to IAVC, so id think you need it to idle right

If it's not priming, it's not being activated. Therefore no starty

You need to find that wire and ground it out. Otherwise the Fuel pump (Or EFI) relay, is not activating, thus not turning the pump on.

You need to figure out what wire it is that you ground out to activate the relay. Then your pump will turn on, Or you need to hardwire it. I would address that BEFORE changing anything you've done with the ECU wiring. Chances are if you were to spray starting fluid in there she would fire up.

In fact do that, and then let us know i she starts with starting fluid

yes but what im saying is it did prime before; the relay is grounded out in the chassis harness somewhere.

or so it should be?

and how do you spray starter fluid if it doesnt have carbs?

heres my pics.

basically i made a jumper harness.... the two black/white coil wires are switched 12v power.

i ran them to the S13 black/white and the other i have going to the sensor wires (brown and black yellow

BEFORE i added that second black/white coil wire to the 8 pronged plug, it worked beautifully.(fuel pump that is)

now it doesn't?

i didn't even change the wire that controls the 12v source for the ECU (original reason why the pump wasnt working, the two mk 2 writeups have the main power source as two different wires, the one was the blue wire (which is wrong) and the black/white wire at the coil source which is correct.






so in theory i didnt change anything except try and find a source for the brown/black and yellow wire, which seems to have caused more problems

s13 black/white should be spliced on s12 lt green/black. Those wires are the ground signal for the efi relay. In the picture the s12 black/white wire from the plug spliced to the s13 red is correct. The two black/white wires from the s12 coils are 12v when ignition is on. The other black/white from the plug is constant 12v.