I would like to put a starter button in my '94 Cav. I would only like it to work with the ignition key in the "on" position. Any help with this foolish endeavor? I want to make it start like an expensive sports car.
take a power cutoff and convert it into an ignition switch, dont know about push button but you can have the lever type.
push buttons are easy to install, run a hot from the key-on hot (not acc) and just run that hot to the button to the starter solenoid.
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Causa latet vis est notissima
DIY Clear 03+ Headlights
Thanks, I'll try to figure out which terminal is the hot key. Which terminal on the solenoid should I use? Thanks, Jeff
Grimor wrote:push buttons are easy to install, run a hot from the key-on hot (not acc) and just run that hot to the button to the starter solenoid.
And most likely burn out whatever your pulling all that power from.
You can do this, however make sure you use a decent sized relay and some heavy gauge wire. It's best to make sure your power going to the relay to fire the solenoid is coming straight form the battery and that it's fused with the proper size fuse. Using tiny little 16gauge wire and running it off something else in your car could start a fire. The kits that they sell for these do nothing more than tap into the same wires that you cross when you turn the key over one more notch. A push button start should do just that.
Either way, you wouldn't have to worry too much about having the thing turn the car over without the key in. To keep an EFI car running the rest of the computer/fuel injectors/spark need to have power to them as well. Without the key in and turned, the car wouldn't actually start unless you did a lot of wiring to ensure all those systems were actually on before the engine was cranked over.
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John Leahy
'01 Cavalier Z24 - 5Speed
MaxThrottle.Com
Acid7711 wrote:Grimor wrote:push buttons are easy to install, run a hot from the key-on hot (not acc) and just run that hot to the button to the starter solenoid.
And most likely burn out whatever your pulling all that power from.
You can do this, however make sure you use a decent sized relay and some heavy gauge wire. It's best to make sure your power going to the relay to fire the solenoid is coming straight form the battery and that it's fused with the proper size fuse. Using tiny little 16gauge wire and running it off something else in your car could start a fire. The kits that they sell for these do nothing more than tap into the same wires that you cross when you turn the key over one more notch. A push button start should do just that.
Either way, you wouldn't have to worry too much about having the thing turn the car over without the key in. To keep an EFI car running the rest of the computer/fuel injectors/spark need to have power to them as well. Without the key in and turned, the car wouldn't actually start unless you did a lot of wiring to ensure all those systems were actually on before the engine was cranked over.
the ignition wire bairly pulls any power, it's just the signal wire to tell the solenoid to complete the circut from the bat to the starter (the solenoid is just a big relay) you're trying to tell him that he needs a relay to turn on a relay lol. I have a push button starter on my town car, you don't want people to be able to crank the car when the key is out/off or just in acc mode.
The stock wire used from to goto the solenoid is only 18-22gauge anyway. The power wire you are tapping into already has a fuse on it before it even gets to where you're going to be tapping into it at. if you want, you can even cut the "start" wire going to your ignition switch and use that for the power supply, it will only have power on key-on.
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Causa latet vis est notissima
DIY Clear 03+ Headlights
Could you do this and somehow bypass passlock on a 96 Cav.?
Yes, but it requires a 555 timer circuit to trick the car into thinking that the lock ASM was turned.
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Grimor wrote:you're trying to tell him that he needs a relay to turn on a relay lol.
I did no such thing. Maybe I'm stupid because I don't have one installed on my town car, but I did suggest the easiest and best way of achieving the desired end result. And I quote myself,
Acid7711 wrote:tap into the same wires that you cross when you turn the key over one more notch. A push button start should do just that.
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John Leahy
'01 Cavalier Z24 - 5Speed
MaxThrottle.Com
Quote:
Acid7711 wrote:
tap into the same wires that you cross when you turn the key over one more notch. A push button start should do just that.
That should work as long as you tap them in the correct locations. Power wire before the tumbler and ground after, or you'll have to hold the key on for the button to work.
You can buy kits that come with instructions and they even have pretty red buttons that have START printed on them so your girlfriend doesn't think it's a dome light button or something and push it while your driving down the road. You'll probably be better off buying one of them, the only place I can think of off the top of my head is AUTOLOC though.
