Car does not start

I have a Hatchback. Motor is a D15B2 block with a D16Y8 (V-TEC) head and intake manifold. I tried starting it several times, it would crank, fire up, but after a few seconds it would stall and shut down. After that it only cranks and won't start. I tried diagnosing why it won't start and also replaced the radiator, because it was broken, and also replaced the fuel filter. So far what I had checked:
- Compression - All cylinders are good, 145-150 PSI.
- Spark - Spark plug wires are okay, spark plugs were replaced two weeks ago, and on some days it would start up no problem.
- Fuel - Injectors all work well, there is good fuel pressure.
- Air - Air system is clean, tried starting without the mass air flow sensor connected, still nothing.
- Timing - haven't checked on it yet, but if it starts up, I think it's not the issue. Might be wrong.

Could there be a bad relay or fuse or something? I am completely lost and really need help.