HELP! Tried everything - car not starting - 2004 Mazda 6
 

When try to start car turns over like gonna start but stalls. Battery shows good but when not connected to jump box doesn't do much

Items I changed already:

cam sensor (2)
crankshaft sensor
spark plugs (6)
ignition coils (6)
mass air flow sensor
02 sensor bank 1 (before first cat)
throttle body
egr
fuel pump
fuel damper
battery

Are you getting spark thru the spark plugs?
Are you getting fuel thru the injectors? Fuel pressure?

Any fault codes?

Yes, I get spark, fuel, compression.

Starts to turn over and then just stalls. Had area youtube mechanics try to no avail. I have thrown a lot money at vehicle. Just about replaced the car.

starting to loose mind.