It will only get juice when it goes off. Just test it on a car battery to see if it even works. But remember, the pulse from the MPEM is short. I had an old oem that would work on a battery but not on my ski
I tested it on the battery and it beeped. Connected it to the wire set plug but there is no powers coming through.no reading on wire. Does this go straight to the mpem box. Should I run new wire.