here's a heads up info post:
i installed the lift pump low pressure light"kit" that comes with the campaign pump, and discovered the sender was bad. so i opened another kit and used it....... works fine now
i think the sender should be tested with an ohm meter before installing.it could possibly save a VP.
the sender/switch is normally closed with engine off, lp pressure over 5 psi opens the switch, and light goes out.
my first sender was always open......