I've tried a lot of things, and I can't manage to make the stock ecu work anymore.

I can OBDII into it, and all the sensors have good readings. The feedback of the ASD powers JS3 I belive, which powers many of the sensors (MAP for instance), which I have a valid reading for... I've just checked my ASD wiring a few times over, and all seems well.

If I can't work anything else out I'll just have to go stand alone. I was really hoping to keep the stock ECU for those functions, and possibly even keep cruise control. I can't be far off... very frustrating considering the car runs just without fans or battery charging :-/

Any ideas are appreciated.

Bulletdsm, any chance you recall how you did the ASD relay when you wired yours up? I'm about out of ideas, and ready to buy a voltage regulator and wire in fan control to my MS.

Anyone have a part number for a cheap voltage regulator that works on the 420a?