I have now re-tested a number of things to confirm.

- I have fuel (pressure at rail, injectors running, plugs wet after cranking)
- I have spark at the plugs - looks hot enough
- All wiring in my harness tests good with no shorts.
- Battery fully charged (again)
- have tried cranking with/without MAS and IAT sensors connected - no diff.
- I can see varying resistance from the cam sensor, but my scope is broken so I can't see any more than that. Voltage between the pins on the connector is .25 volts. Seems a bit low - or is it normal? I can't find a reference to this.

- OVP relay to swap in to test is on the way.

I am becoming despondent.