HOW-TO: Fuel cut off plug Options

[Niskyspy]

I am not responsible if anything happens with your car if you install this security system in your car.


1) Relay
2) Male plug (just choose the one u like but with at least 6 pin's)
3) Female plug (that would work with the male plug)
4) [url=http://www.radioshack.com/product/index.jsp?productId=2102783&cp=&pg=2&origkw=fuse&kw=fuse&parentPage=search]Fuse
holder[/url]
5) Some 10 gauge wire
6) Some kind of protection for the wire (small diameter flex tube might do the trick, to protect your wires from being spliced)



PIN1 +12V going from the battery or any constant +12V
PIN2 Ground
PIN3 A wire going to RELAY
PIN4 Ground
PIN5 Ground
Wires: All the wires should be the same color (black) so that theif wouldn't know the difference.
Ground: It would be really good if the 3 ground wires would go to the different ground point in your car, so that theif wouldn't know where that wire really goes.

Well like u see, the use of the relay will make sure that the only thing that can get burned is ur relay not the fuel pump. This relay is rated to 30Amp's which I think is more then enough for a fuel pump (check me I might be wrong).

So here's how it works:
1) When the plug is in (the right way) PIN 1 and PIN3 allow a flow of current to the relay.
2) When relay gets 12V of current it closes the connection on the fuel pump wire and pump gets voltage.


What thief sees is a plug with lets say 5 pins in it. So if the thief connects any of two wires the wrong way for example PIN1(+12V) to
PIN2(GROUND) the fuse would blows and the relay will not engage until it gets 12V current running through it, which can only be done by replacing the fuse. Another good thing about this setup is that you can hide your relay far in your dash in a place where the thief will never get to it.