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After reading another thread about Lane's Honda getting stolen and talk of installing a kill switch, I thought I could help by doing a little write up. These are pics of my old 1989 Festiva L with fuel injection. There are so many ways to do this but I think a fuel pump kill would be easy and somewhat difficult for a thief to find.
Its really hard to write with MS Paint so forgive me for the child like writing. Be careful when soldering wires around the fuel tank/pump area. I'd put a large heavy blanket over the area just to be safe.
In this picture, I drew a simple schematic of how to wire up the kill switch. I always like to interrupt the ground side of the circuit but you could also interrupt the positive side if you'd like. I did not draw it in the schematic, but its always a good idea to put in an inline fuse on the battery side of the relay circuit (number 30), a 20 or 25 amp fuse would be perfect.
The green/white wire will provide the 12 volts to the relay on pin 85 and ground for pin 86 could be any good ground in the rear of the vehicle. Or, if you're hiding the switch somewhere up front and interrupting the ground side, just use an under dash ground which would require a lot of wire. This is what I'd do so I could install the switch somewhere up front.
Pin 87 is the large current output side of the relay. I guess I'd hide the relay somewhere in the back near the fuel pump housing. Pin 30 will require a long wire to the positive post on the battery in the engine compartment. I'd solder female spade connectors onto the four wires to plug into the male spades on the relay.
Once you're wired up, its up to you where to hide the switch in the car. Hope this helps you out with your kill switch. If you have any questions I'd be happy to answer them.
I did not do this to my old Festiva, however I did wire up a kill switch to my 92 Fox body Mustang and it worked great.
Its really hard to write with MS Paint so forgive me for the child like writing. Be careful when soldering wires around the fuel tank/pump area. I'd put a large heavy blanket over the area just to be safe.
In this picture, I drew a simple schematic of how to wire up the kill switch. I always like to interrupt the ground side of the circuit but you could also interrupt the positive side if you'd like. I did not draw it in the schematic, but its always a good idea to put in an inline fuse on the battery side of the relay circuit (number 30), a 20 or 25 amp fuse would be perfect.
The green/white wire will provide the 12 volts to the relay on pin 85 and ground for pin 86 could be any good ground in the rear of the vehicle. Or, if you're hiding the switch somewhere up front and interrupting the ground side, just use an under dash ground which would require a lot of wire. This is what I'd do so I could install the switch somewhere up front.
Pin 87 is the large current output side of the relay. I guess I'd hide the relay somewhere in the back near the fuel pump housing. Pin 30 will require a long wire to the positive post on the battery in the engine compartment. I'd solder female spade connectors onto the four wires to plug into the male spades on the relay.
Once you're wired up, its up to you where to hide the switch in the car. Hope this helps you out with your kill switch. If you have any questions I'd be happy to answer them.
I did not do this to my old Festiva, however I did wire up a kill switch to my 92 Fox body Mustang and it worked great.
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