Hi again.

I did a bit more detail. When I initially measured battery voltage at the
coil, I checked the primary connection at the coil. I went back out just
now and pulled the wiring connector at the power stage and checked those
pins. I had battery voltage on the middle pin, zero on either outboard pin
with the key on, and with that still had battery voltage at the coil's
primary circuit. (Not sure which is #3 as depends if the wire bail should
be up or down when counting, and then I see in the manual for other
connectors, such as the camshaft position sensor connector, they show
counting pins up from right to left when the wire bail is up.)

I also pulled that middle relay and reinstalled with the key on, and upon
doing that, did hear a somewhat familiar click from somewhere under the
hood.

I also checked out the coil per the Chilton's manual, which said checking
ohms from high tension to primary I should have 5 to 8K (I had 6K) and
primary circuit to ground I should have half an ohm, I had about 0.1; but
the lowest scale my meter goes on is 0 to 200, so I would guess my meter is
not accurate at such a low reading.

Do you know what function the power stage serves? I am contemplating
putting on an older 12 volt coil from the 70's to see if I get a spark
there..

Thanks again for any help.

Jim