i did everthing right but when i tryed to ground the switch it stoped working

 

Why would you ground the switch? How did you wire up your switch?

All i do is take the power wire to the fuel pump, cut it, then put one end of the wire on one terminal on the switch, and the other end of the wire to the other terminal. So in order to complete the circuit for the power to the fuel pump, you have to flip the switch. Is this what you did?

Also be careful if you're doing a fuel kill switch, you could fry your whole fuel harness or your fuel pump

 

LMAO, you do not ground the wire....

you simply put a switch in the wire so it does not connect when in one position, and is connected in the other



its EXACTLY LIKE THIS, except the battery is one end of the split fuel pump wire, and the car is the other end of the fuel pump wire

the middle pin goes NO WHERE

it willbe like this ... : wire ----> switch <---- wire

 

lol i ment like to make the light switch turn on. but i found out what was wrong. it was a blown fuse

 

WOW, what amperage switch r u guys using?