The load can be anything you want... all battery power to the ignition switch, just the coil, just the fuel pump (pump wouldn't work too well with the ecm priming and then turning it off though), ecm, etc.
You run a +12v trigger from pretty much any CURRENT FACTORY SWITCH that gets constant 12v power (power mirror lead, headlight or parking light switch, etc.), know that you only need to trigger it for a split second (i.e. just tap it), but you already have to have the key in the run position. Once you trigger the relay, the circuit has power until you turn the key off, severing the connection and shutting the relay off. The relay automatically breaks the circuit, and the only way to get it to work again is to use the same trigger (headlight switch, mirror switch, etc.) with the key in the run position.
The only thing about the relay cutting all power to the ignition switch is you would have to use the same trigger if you wanted to turn the key back to accessory. So long as you don't install this in a visible spot, nobody will ever be the wiser to what you need to do to start the car. I plan on doing this with all my vehicles, I just haven't done it yet :P
The load can be anything you want... all battery power to the ignition switch, just the coil, just the fuel pump (pump wouldn't work too well with the ecm priming and then turning it off though), ecm, etc.
You run a +12v trigger from pretty much any CURRENT FACTORY SWITCH that gets constant 12v power (power mirror lead, headlight or parking light switch, etc.), know that you only need to trigger it for a split second (i.e. just tap it), but you already have to have the key in the run position. Once you trigger the relay, the circuit has power until you turn the key off, severing the connection and shutting the relay off. The relay automatically breaks the circuit, and the only way to get it to work again is to use the same trigger (headlight switch, mirror switch, etc.) with the key in the run position.
The only thing about the relay cutting all power to the ignition switch is you would have to use the same trigger if you wanted to turn the key back to accessory. So long as you don't install this in a visible spot, nobody will ever be the wiser to what you need to do to start the car. I plan on doing this with all my vehicles, I just haven't done it yet :P
That's a pretty cool idea! I don't know that I would want to ALWAYS have to deal with it though, I could see that being on my nerves occasionally. I don't feel a need for a kill switch ALL the time, just in rare occasions in a questionable part of town or something but that is definitely stealthy. I like it.
I have seen and used some of the most unusual things as kill switches. putting the turn signal on or the starter won't engage, turning a map lite on, switches in all sorts of places out of the ordinary, under the ashtray, under the seat, under the dash, in the glove box,
But ya now a few million people know just where he put his.
Steve
------------------ Technology is great when it works, and one big pain in the ass when it doesn't
Detroit iron rules all the rest are just toys.
[This message has been edited by 84fiero123 (edited 02-26-2014).]
Another thing that I've read/heard about (or maybe the thought was just in my head), some simply wire up a cigarette lighter socket that would trigger a relay, etc. where if you didn't have a lighter "plug": [img]https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQYEEwRkTTSbzJcErQt6PQ_zyWApy8Gma_cuHsaMA04OvvdU9Ax[/img]
with the + and - terminals shorted, they wouldn't route power to something else, like the fuel pump or ECM. In other words, if you removed this lighter plug, the car wouldn't start. It could be hidden or in plain sight.
