Fuel Cut off Kill Switch
On 87- 91 cars the fuel pump relay is under the seat, 92 and later cars ,the fuel pump relay is under the Mass air duct on the passenger fender well. Cut the red/black wire going to the fuel pump relay. Splice a 16 or 18 gauge wire into the wire and connect it to one side of the switch. Connect the other side of the switch to the other end of the red/black wire going to the fuel pump relay. When you are done the switch should be in the middle of the spliced red/black wire that goes to and comes from the fuel pump relay. Using the inertia switch side of the circuit allows you to use light gauge wire and light duty switches. There is less than 1 amp going through the circuit, so you don’t have to worry about voltage drop across the wiring depriving the fuel pump of electrical power.
You will probably want to take out the seat, but when you do it'll be sitting right there. Little black box on an L bracket. I couldn't say before or after, Mine goes directly to the pump itself. I would say before the relay though, to be safe. No reason to have it working any more than it has to. On a side note, always make sure you turn it on before you turn the car on. Do it before you even put in the key if it'll help you remember. I forgot a few times and it messed up my computers ignition sequence and I had to clear the memory and re teach it how to start. You don't want to lose your injector priming before ignition.
' i will be attempting this come spring when it warms up' how long did it take you to wire in all this and if i did by chance turn the key before i turned on the switch how does a person reset his computer.
