I had similar symtoms on my 94 850T w/ 175000 mi. Had fuel pressure but no spark. After a few parts changes with no sucess, I replaced the Cam Position Sensor and it started on the first crank. I would reserve the ECM until all the sensors check good.
Good luck,
Tim

I have a '94 850 turbo wagon with 175K miles. The dashboard arrow (transmission) lights up occasionally and won't reset until I shut it down and set overnight. I plugged my scan tool into the console socket but no codes are shown. I left the scan tool plugged in and drove the car and noticed that at...