AE with Microtech won't start
 

Hi Gang,
I recently bought a 10th AE and drove it home from Montana to Denver (750mi) without a hitch. Drove it to work for a week without a hitch. It has a recently rebuilt engine (5KMi) with a Microtech ltx12s ECU.
today I drove to work - 22mi - just fine. returning from lunch, I gently bounced into the driveway back at work and the engine died. The ECU lights were out and I found a blown fuse. Replaced the fuse and all was well getting to my parking space.
A few hours later, leaving to go home, it started fine but about a half-mile down the road the idle dropped to 500 or less. Then as I turned a corner with the clutch in, it died and won't start.
it cranks fine, but won't ignite. cranks like there's no spark (though i haven't checked it; just had it towed back to my office). The lights on the ECU are lit, and the fuse is okay.

Would someone here have suggestions on what to look at?

with much gratitude

- k -