Greetings from Russia!

The car is RS6 C5, recently converted to MT using SteveKen's kit. It ran fine for a while, I drove it to work the other day, parked fine, shut it down and went to work. When I came back in the evening - the car won't start. Starter engages just fine, turns over, engine appears to still have compression.

ECU has no codes, apart from missing TCU.
Got no spark, no "control" impulse to injectors.
Fuses seem to be okay.
Fuel is in the rail, fuel pump works (well, at the very least - one of them does).
G28 (CPS) seems to be fine - tach needle functions properly, shows correct RPM when towing the car in gear (it still wont start this way).
Replaced the driver's side cam sensor as well, but can't reach the passenger side one.
Timing belt was done ~15K km ago.

I'm thinking either ECU failed somehow, or maybe timing belt jumped a tooth or two - no matter how unlikely that sounds.
Will get the spare ECU in a day or two and rule that out.

Any other ideas?
Thanks!

And apologies for my English.