another electrical question

This is where modern technology is fun.. There is some good info about fuel pump circuits on google images. you could also pick up an impact sensor from a car at a yard to work into your diagram. my old ranger had a little magnetic ball socket type cut off for the fuel pump located inside on the passenger firewall/floorboard. some cars have them in the trunk. cool little safety feature, but also kinda annoying if you hit a speedbump really fast.

google search fuel pump inertia switch..