Type 4 ignition issues Options

[VaccaRabite]

This is for my 1972 bus, but it’s very similar to a carbed 914. I am in a no start situation.

1.7 Type4 engine.
123Ignition dizzy (new)
New 12v coil - 3.6 ohm

Voltage from terminal 15 (+) on coil to ground is ~9 volts.
Voltage from terminal 1 (-) on coil to ground is 12.6 volts (battery voltage)

If I run a jumper from 15 to ground I get 12.6 volts - but still no start. So- I’m getting voltage drop somewhere.

Plug wires are spiral wound wires. I tested the resistance of the center wire (dizzy to coil) and it was 767 ohms. Wire is about a foot long, so that is in spec.

The green light in the 123Ignition turns on if I spin the body. So not only am I pretty sure the unit is getting power, but I’m also pretty sure the timing is close enough that I should get it to start.

123Ignition is wired correctly. Red to 15, black to 1 on coil.
Fuel pump is also running through the coil and it runs solidly on key on, and key off but jumper end from battery + to post 15 on the coil.

I have tried removing the tach and fuel pump wires - no help.

I don’t think this is a 123Ignition problem. I think this is a bus wiring problem.

History - bus was running AWESOME. Went for a 120 mile drive, but before I got out of my neighborhood I started missing bad and limped home a couple miles on 2-3 cylinders. This was back in December. I tested the coil and it was reading 2ohms across the primaries so I figured I had blown up my points (points generally want 3+ ohms). I now think my points were likely fine, and I am dealing with a bad wire or a bad ground somewhere.

Okay brain trust. What you got?

Thanks
Zach