[s-cars] CPS Question

[racingiron at comcast.net]

'93 ECU installed with no change. [sigh] Car cranks but no start. Still no CEL when ignition switched on. Boost gauge stuck on 0.2. I reinstalled '92 ECU and now immediately after I crank it and release the key, I get three flashes/beeps of the oil pressure warning from the Autocheck, then it goes away. WTF?!? 

Just for grins I applied 12V directly to the fuel pump to confirm it runs and I hear fuel flowing back to the tank. Also tried starting with MAF disconnected. Could this be caused by the ignition switch? I replaced the electrical part several months ago due to what feels like a reluctance to return all the way after starting, but that feeling persists. It returns, but I get the feeling I could engage the starter if I turned it forward again. I usually just nudge it back slightly until it feels like the starter lockout is active. 

How about ECU grounds? I checked the grounds on the head and they all look/feel good. I guess I'll go poke around with my DMM before calling it a night... 

Eric R. 
'86 urq 
'92 urS 
'93 urS