another 1.8 L-jet garage find no start Options

[RRietman]

Hello all, first time poster here. long time Porsche owner but no 914's for the last 20 years. just got a 74 1.8L. Not running. been sitting for a few years. looking for some advice on getting it started. here's what I have done so far:
drained fuel, cleaned up pump and contacts. replaced filter and lines here. R&R AFS, throttle body,air dizzie, cleaned. replaced all vac , fuel hoses. checked fuel pressure= 40-- holds 20 for about 20 min.. new points,condeser,cap,rotor,wires,plugs,static timing. check compression---140-160.
cranked it up, starts, revs once, then dies. then crank crank crank ---nothing.
wait ten minutes. does the same thing. checked all double relay functions, connections---everything OK. replaced relay anyway, looked bad. R&R all ground connections. ALL of them. still does the same starting drill. R&R and check operation of aux air valve,throttle switch,cold start valve thermo switch. evrything OK except thermo switch a little sketchy. jump thermo switch plug with 12v and ground, engine starts , runs poor, dies when jump is pulled. pulled ECU connector do voltage supply tests from manualstype4. all OK. rehookup all wiring, pull injectors, crank with ign on--- no fuel spray. pull ECU connector and injector plugs 12v at all plugs--- no shorts. apply ground to #14/15/32/33 and get good repeatable fuel spray test. 50---70 cc at 20 sec. hook up ECU, crank + ign = no fuel spray. jump coil#15 and starter #50 w/12v (bypass ign sw). crank= no fuel spray.

I'm at the wall here. ECU?
also, one of my VW manuals talks about replacing the 15C thermoswitch with a later 35C unit to help starting problems. makes sense to me. comments?

TIA
Randy
Bellingham Wa