Basically i have a oil press gauge, an electric type which has a single wire sender unit, measuring resistance as the pressure increase, is it possible to wire up a super bright LED to come on when there is zero or close to zero oil pressure?
I dont always look at the gauge on the track, it would be nice to have a bright light that i can see no mater what and shut it off before major damage happens.
Im thinking it cant be too hard, since i just work out the resistance of the sender unit with motor off, and some how make a circuit to match that. anyone want to run through an idea with me?
EDIT: stock gauge isnt hooked up and neither is the light, both are dodgy as on the 32, i have an after market gauge which works a treat, just want a fail safe.