Ignition switch to ignition coil feed, which wire for FIA switch

[sonny172cup]

Im looking at fitting a FIA master cut of switch.

I need to locate and splice into the feed from the ignition switch to the ignition coil.

Looking at the wiring diagrams (without starting to cut wires up in the car) can someone point out what wire it is. Im guessing it could be the white wire from port 6?

I have looked at all the other wiring diagrams and cant see anything that mentions ignition coil.

 

[sonny172cup]

Looking at the ignition switch in the car there is 4 wires (does not show 4 on diagram).

So, what colour should I put the circuit breaker into to cut power to the ignition coil? Im guessing its red??

 

[sonny172cup]

Car electrics is not my strong point....everyone who I have asked who have race cars all said they had someone else wire theirs in! :/

 

[mark123]

I can't remember which I cut. Work it out with a multimeter. You basically have the live feed in and a wire for each position if the key. You need to find tge one that is live in positions 2 and 3 iirc.

 

[sonny172cup]

So on the first diagram, there should be another wire, going from ignition switch to ignition coil? Good call on the multimeter...something else I need to buy..

 

[itsjamz]

Did you find what wire it is? I need to fit my cartek solid state this week

 

[sonny172cup]

No not yet, need to get a multi meter, I have asked numerous ppl even ppl who own garages and still they cant tell me what one I need to splice into lol

So I will try the red wire first, then failing that the yellow.

 

[mark123]

I'll take a look at mine this evening if I remember. Congrats on the ards btw.

 

[sonny172cup]

Cheers Mark and thanks

 

[Toastfrenzy]

I'm sure it's the yellow one that's live on II & III as needed that for the EPAS stuff.

 

[sonny172cup]

Ok, what wire did you cut into for your cut off switch, do you mind looking Pete (or mark). This is needed to pass scrutineering so ppl who race on here must have done it at some stage (unless its a push button kill switch).

 

[mark123]

I've just looked and it was the red one. That does the ignition.

 

[mark123]

But that does seem contrary to what you wiring diagram suggests.

I'd defo check it with a multimeter.

 

[Jaff.]

Red should be your permanent live. The other 3 will be your aux.

For example when key is in pos 1 it will use the 12v from the red and send it down the orange
when in position 2 it will send down orange and yellow.
In position 3 it will send it down the green wire which is your starter motor trigger.

​you don't need a multimeter. This can be done the pikey way with a few cables and a 12v light bulb and holder (indicators are ideal)

 

[mark123]

Red should be your permanent live. The other 3 will be your aux.

Not necessarily.

Just get a multimeter lol, it will be handy in the future.
​

 

[Toastfrenzy]

Got a solid state push button kill switch. All I can offer is the yellow is live at position II, confirmed ^ by Jaff. Not much use unless you're going to fit EPAS too.

 

[Jaff.]

Not necessarily.

Just get a multimeter lol, it will be handy in the future.
​

i said should be lol. I was careful to make sure I didn't say "is". Been stung by that before!

 

[mark123]

Well you are right anyway lol.

Red is permanent live, green and yellow is pos I, yellow is pos II and orange is position III. I have just checked mine.

I had to cut the permanent live as my cut off was solid state and needed power even when the key was off. But your diagram in post 1 suggests you need to cut between the switch and the coil which would be the yellow wire.

 

[sonny172cup]

Thanks guys that has cleared it up, I will tap into yellow (as the permanent feed will be cut by the main battery supply by the cut off switch).

Will try and get this job done today hopefully

 

[itsjamz]

I've got a cartek solid state. I'm still unsure what one I need to go into it. What did you use to attach it/splice into it? I'm so useless at wiring and this is e most ill ever do lol

 

[sonny172cup]

The bottom two pins attach to the feed from ignition to coil, i will just cut, attach wire with heat shrink and put some crimps on the other end slotting them on the pins.

Solid state im guessing will be different

 

[itsjamz]

I had an after market alarm on the car that I ripped put. I guessing it will go to the same wire as that did.

 

[itsjamz]

​http://www.cartek.biz/ISOLATORGTInstructions.pdf

 

[mark123]

I have the cartek solid state.

I cut the red wire as the isolator needs to see power even when the key is in the off position. I did it with the yellow initially and it didn't work properly.

​

 

[itsjamz]

Spot on. Hope it works lol just need to get out now

 

[celgt4]

Thanks everyone.