1997 Mazda Millenia 2.5

Are you getting spark to the plugs? Have you checked for power to the injectors?

Okay, if you have a good hot blue snapping spark, fuel to the engine via the injectors, the timing is correct, the engine has no choice but to run. You're missing something unless engine compression has dropped below where it needs to be.

Tell me, will it start if you use starting fluid?

If you have that high of compression and the car still won't start with starting fluid, recheck for spark at the plugs. Make sure it is a hot blue snapping spark.