Okay once again my little non electrical mind is left in the dark. I've had the megasquirt in my 1995 miata for right around a week and I'm still trying to figure out how in the world the wled circuit works for my fans. Documentation just says "connect the headers to the appropriate pins". I have dug through every single forum I can and it's all the same. "Just hook up the wled circuit to the fan wire in the adapter board" Well that certainly helps. How does the wled circuit work? Is it a grounding circuit or a "hot" circuit. pictures of a fan circuit would be very appreciated. I am no genius when it comes to these things but I did put the board together so I guess I have luck on my side.