Thanks Klaus,good info. Long story short, tried to read codes using Haynes manual instructions and got nothing from A6. Got tired of this, so tried to start the car and vrooom! it worked.

Got home, looked up better instructions for code reading and found that A6 is not always the right one.

Got these codes:

A1:
2-2-3 (Throttle position signal too low?)

A2:
1-1-1 (all good)

A3: 1-4-2

A6: Flickers (I guess this one does not do anything on this car)

A7:
1-2-2 (Temp. sensor interval too long?)

None of these should cause a no-start. No cam position sensor error, so that common failure point is apparently ok. Hard to diagnose further since the car is working now. I'm thinking of buying a fuel pump relay as these seem to be common failure points. Install new one, keep old (possibly ok) one in the car as a backup). Keep going and hope for the best. If it dies will try the last step, unplugging the MAF and (hopefully) limping home.

Thanks for your help,