Yep, my idea is a form of pulsed electrolysis.
I want to and already have some of the parts, but my health problems have me in the gutter. I'm near useless with electronics right now. I've put together my theory from bits and pieces of other "hydrogen as a fuel" free energy type projects. Other researchers have cracked (pun?) the secret, but they haven't fully explained how. There's also a video someone posted here using higher frequency electric pulses and a magnet that produced a lot of bubbles that looks somewhat overunity (at least based on today's flawed physics of electrolysis). I think that video was showing the natural magnetic vortex in a fish tank.
I'd like to first use the hydroxy gas fed into my artificial ventilator I have to sleep with at night. Hydroxy gas is supposed to have some healing benefits. It would probably help with my suffocation all night, too (extra oxygen). A hydroxy torch is also supposed to be very good for cutting metals, which has some of my interest. If gasoline prices ever spike beyond stupid levels, this could be a viable alternative clean burning fuel, but the engine needs some slight modifications first. If my idea really leads to overunity cracking, obviously that becomes a self sustaining engine. Just "refuel" the water tank every now and then.