Using the old spark plug grounded on the intake while cranking trick, I got weak and sporadic spark.
Using a 12V LED I measured between positive lead of igniter connector and the other 2 "signal" leads. When ignition is on, these signal leads produce 7 or so volts (This seems weird). When I crank the engine my LED does not pulse in a rhythmic ignition timing sort of way. Its very slow to turn off and on and is quite irregular. If I crank for more than 5 seconds or so the LED goes out all together. This on both signal leads.
Battery is fine, starter cranks away at high speed. ( I have adapted a starter from a VW TDI.) I do get a CPS code consistently even though I just replaced that sensor. Popped timing belt cover to inspect "teeth" on cam and crank and they look fine.