AZGhost Posted December 1, 2012 Share Posted December 1, 2012 So as my build is getting closer to complete, I am really starting to think about tricks to keep a potential thief from driving off with it. Has anyone put any kind of kill switch on the starter or fuel pump? Any advantages or disadvantages of one over the other? Any other ideas? Not looking for an alarm system. Just something more simple but yet would deter someone after about 2-5 minutes of trying to figure out how to start the car before they just give up. I was thinking of putting in a kill switch behind the driver seat that would run between the key and the switch to the fuel pump. Im figuring if the kill switch is in front of you somewhere, it most likely will be found, but behind the seat, maybe not so much. Father in law thinks perhaps a button you have to hold in while turning the key to make the starter work. Maybe both? Both are rather simple installs to do. Suggestions welcomed Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 1, 2012 Share Posted December 1, 2012 A latching relay in the starter circuit, activated by a hot button someplace not easily found (like in the LOCKED glove box, or a Hazard Light Switch that is stuck into the console hiding in plain sight. The relay allows placement almost anywhere and the control wiring and button can be exceedingly small. This lets you put the relay hiding under the dash on the passenger side, not where the thief bastard SOB would first look, and then putting the button elsewhere. If you put the switch easily accessible, chances are a thief will run his hand over it because all the easy to reach places pretty quickly and this means a simple toggle is an easy giveaway. A button grounding a latching relay to open/close isn't the normal thing to run across. And a hazard switch, running light switch, even the stock antenna MOM switch would work. They used to sell membrane switches. These are genius! You can slide them under the carpet and have to know 'the special spot to touch' to activate it. Using a simple timer chip that automatically unlatches the relay after you shut it off after 5 minutes (passive arming) keeps you from punching the button all the time if you shut the engine off in the drive through, or at a light, in stop-n-go-traffic.... And may entitle you to an insurance discount. Quote Link to comment Share on other sites More sharing options...
s30red240z Posted December 1, 2012 Share Posted December 1, 2012 grounding the negative ignition coil wire, is very effective, and you can do it with a simple switch, if you don't have any MSD system, this works only for a single coil. Quote Link to comment Share on other sites More sharing options...
emeraldlion Posted December 1, 2012 Share Posted December 1, 2012 What happened to just taking your coil wire and locking it in the glovebox, or installing a lock on the tool compartment door and locking it in there? Just too time consuming anymore? 'Course, now that I think of it, most of us aren't running coil wires anymore are we...gotta love advancements in tech. Quote Link to comment Share on other sites More sharing options...
DREW RBZ Posted December 1, 2012 Share Posted December 1, 2012 http://www.flixya.com/video/4788589/Trunk-Monkey-Car-Anti-Theft-Device Quote Link to comment Share on other sites More sharing options...
AZGhost Posted December 1, 2012 Author Share Posted December 1, 2012 lol those trunk monkey commercials are priceless... forgot all about those Going to a distributorless system, so no more coil, its all coil on a wire now. I was thinking behind the driver seat, because a thief to me checks glove box, and center console if he cant see anything. Ill have to check out some of Tony's ideas. Thanks! Quote Link to comment Share on other sites More sharing options...
bfg Posted December 2, 2012 Share Posted December 2, 2012 put the button in the shift knob, James Bond Style. Quote Link to comment Share on other sites More sharing options...
rayaapp2 Posted December 30, 2012 Share Posted December 30, 2012 Im working on using a BlueGuard FE that is made for a gate code to work with the DZ Start. Quote Link to comment Share on other sites More sharing options...
nash542001 Posted December 30, 2012 Share Posted December 30, 2012 Try this circuit very simple and effective. Immobiliser Quote Link to comment Share on other sites More sharing options...
Miles Posted December 30, 2012 Share Posted December 30, 2012 Install a Painless electric fuel pump relay kit with the relay inside the car (passenger footwell or toolbox). Unplug and remove the relay when parked. Quote Link to comment Share on other sites More sharing options...
spotmy4 Posted December 31, 2012 Share Posted December 31, 2012 Install a Painless electric fuel pump relay kit with the relay inside the car (passenger footwell or toolbox). Unplug and remove the relay when parked. That's what I do with my fuel pump relay. What i want to do is something like this. http://gizmodo.com/5691724/how-to-track-your-vehicle-on-the-cheap Quote Link to comment Share on other sites More sharing options...
ihiryu Posted January 16, 2013 Share Posted January 16, 2013 Try this circuit very simple and effective. Immobiliser Wow! I've always thought about using a reed switch for this same use. It's crazy that someone already did it. Quote Link to comment Share on other sites More sharing options...
Tony D Posted January 22, 2013 Share Posted January 22, 2013 Thay DIY Inmobiliser is very similar in function to the "Counterpoint" I bought in the 90's. it passively armed with a timer chip though...instead of the button. Thats a nice circuit. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted January 24, 2013 Share Posted January 24, 2013 (edited) The cigarette lighter in a car is about 2 ohms resistance and can be used with a relay who's output is in series between the starter switch and the starter soleniod. Car only starts with the lighter pushed in. I've also used a baby monitor system simply put under the seat and on a relay that is normally closed.......but opens when the car is running so you aren't broadcasting you singing to Captain and Tennille while you drive. When you hear someone in your car, it's time to bust some heads.......or get shot by the perp. If you don't relish getting shot but want them to leave your car, get another baby monitor and put the receiver under the seat so you can simply turn on your transmitter and tell the perp inside your car that the pain train is comin'. Edited January 25, 2013 by HowlerMonkey Quote Link to comment Share on other sites More sharing options...
cockerstar Posted January 24, 2013 Share Posted January 24, 2013 Try this circuit very simple and effective. Immobiliser This one has been in my bookmarks for years waiting for my Z to hit the road! Quote Link to comment Share on other sites More sharing options...
Bartman Posted January 24, 2013 Share Posted January 24, 2013 I installed a very simple, but effective, toggle switch on the power to my electric fuel pump. It is hidden, but of course I don't want to say where. I like that if someone wanted to steal it I would hear the engine start and then die shorlty thereafter. As loud as my car is it's like setting off an alarm. Quote Link to comment Share on other sites More sharing options...
Turbo Meister Posted January 25, 2013 Share Posted January 25, 2013 If you have an MSD system there is an extra wire you can route to a hidden button. My button is under the carpeting and it cannot be felt unless you know exactly where it is......sometime I have a hard time finding it. The engine cranks but will not start when the button is engaged. Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted February 11, 2013 Share Posted February 11, 2013 I was also going to suggest the cigarette lighter trick. I've used it on a couple vehicles. My preferred method is to use a proper transponder immobilizer. Passive arming, passive disarming (key fob just needs to be within a few inches of the receiver ring), nothing extra to do when you get in the car, nothing to forget to engage, nothing to forget to dis engage after a long hiatus from the car (Say like over the winter). Most systems also include an LED that is an effective deterant on it's own. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted February 12, 2013 Share Posted February 12, 2013 (edited) Don't put the led anywhere near the windshield. I used to repo cars for falcon international in miami beach during the late 80s and I modified a stun gun (thunder woman) by attaching a spark plug lead to one electrode with an alligator clip on it the car and putting the stun gun electrode against the windshield as near as you can get to the led of the alarm while pulling the trigger. Eventually, you will get a spark to jump to the led and the alarm is done.........and possibly a bunch more of the car's systems. It worked and I didn't bake any ecus doing it. Edited February 12, 2013 by HowlerMonkey Quote Link to comment Share on other sites More sharing options...
AZGhost623 Posted February 12, 2013 Share Posted February 12, 2013 really like the cigarette lighter trick. I may have to re-think my toggle switch idea. Currently I built a custom power distribution panel off the ignition, and I have a toggle switch off it that basically turns that fuse block on and off. But maybe a push button clicker hidden behind the cigartte lighter is a good idea.. pretty inconspicuous... I wouldnt have thought of that Quote Link to comment Share on other sites More sharing options...
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