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Is it summer yet???

Here's the circuit diagram. Looks like the blue light just shows that the relay got power, but doesn't show that the relay did its job. Notice that of the two wire ends over the window, one is just a ground. Only one has power, you have to pick the correct one. You can just use your meter and test directly to a body ground. If there's no power at either wire, but there is power at the fuse, that would indicate that the relay is not closing the circuit, or it's been disconnected.

I received my 123Tune distributor a few weeks ago and with the kind help of Mike W I have programmed it, installed it and the engine is running well. I modified one of Mikes curves to a curve I think is conservative, 8* static at idle up to 29* total advance at 3200 rpm. That will allow me to toodle around town for now and make sure all of the other changes I made to the car this winter are working before I start the final tuning of the carbs and timing. The instructions were translated from Dutch to English so there are a few awkward sentences and some missed steps. The most important being, after you have installed the unit and powered it up you are turning the dizzy clockwise just until the green LED lights up (putting the Hall effect sensor in the perfect spot for TDC), this is where you HAVE to tighten the screw and lock down the unit so it won't move again but there is no mention of that. But now you know or you have figured it out soon enough. Here are few pics, the unit is quite small, smaller even then the original 240Z dizzy but very well made. The only real problem I ran into is my sparkplug wires from DatsunSpirt are measured and cut so that the #1 distributor posistion has to be about at 7-8 o'clock. This is my stock dizzy, This where the 123Tune unit sat at TDC, So after rotating the oil pump driveshaft 90* I ended up with #1 TDC back in the old posistion and all of my wires fit perfectly.