At 04:41 PM 6/12/2010, David Beierl wrote:
>Another solution would be to use a diode to bridge the cut instead
>of a resistor.  That way the internal [ALTERNATOR] voltage should
>never go more than a diode drop above the regulator set point.  Not
>ideal, would want a warning probably;

Of course the warning would be that the battery would run down while
you drove.  Dunno though whether the ripple from the unloaded
alternator (i.e. no battery) might fry ECU anyway, though I imagine
not.  Safest though to get rid of the possibility, i.e. run all loads
from battery.

Mine,
David