I've searched this forum like crazy for a couple days and if this one was answered somewhere already, I couldn't find it. Sorry if it's here somewhere and thanks ahead of time for any tips or nods in the right direction.
First, here's a look at my engine compartment if that helps:
I've been playing around with making a Hotsabi HHO booster. (btw, Please don't reply if you have opinions about HHO. I'm past that stage already and looking forward to running my experiment. Also, I'm just asking a [hopefully] simple wiring question.)
Here's my Hotsabi so far just for curiosity's sake:
I'm planning on using an auto relay, 30 amp breaker, 15amp fuse, kill switch and ammeter, plus I'll probably have to buy an EFIE at some point.
It's going to mount real nice next to the evap cannister.
I read that I should wire this hydroxy booster into something that is only hot when the engine is actually running.
After studying my Chilton's guide here for awhile it seems to me that I could wire the low voltage part of the relay to the Oil Pressure Sending Unit.
You can see it there above the oil filter.
So, my question is can I do that? Does that thing send enough voltage through the wire going to the gauge that it would power a relay?