1990 VW Passat 16v, MS2 v3.57 MSnS extra 2.10d, distributer/hall directly driving a single coil
The ignition input is still a little uncertain to me - I understand that there are lots of ways to make it work, but that doesn't really make me feel better.
My hall sensor is an open collector. With a 12v pull-up on it's output, it gives me a nice going-high signal, lines up with the rotor with a measured trigger angle of 90deg. (apparently this is *supposed* to be about 60 on my engine?) Rather than installing the resistor in the harness I installed it internally, and since it seemed silly to go to 12v and then back down, I went from the 5v supply pads to pin 24 and jumpered D1 - figured I would try that and then jumper D2 if needed. And now my Megastim (v2.21) tach input doesn't work? Then I realized that R57 is sitting there, a perfectly designed spot for this, so I am installing the pull-up resistor there, but I don't see that making the stim work.
What is "trigger return" vs. "basic trigger?" I've been looking...and looking...and looking, and still don't know what this means? And, if I understand correctly, the "angle between main and return" is the duration of the low/ground output?
Thanks to all!