I just installed an amp gauge with my hho system and I don't get any reading on it.
I ran my power wire from my relay to my PWM then the + wire going to the cell I cut and put the half of the wire coming from the PMW to the + terminal on the amp gauge the other half runs on to the fuel cell. I'm not getting any reading at all. I originally made the splice with the ground wire going to the fuel cell and that got the same results. I am getting voltage to the PMW and coming out at a reduced amount appx. 13v--app 3v out. why am I not getting any reading?