Only ran into this problem after upgrading to RX-8 injectors when I found I had stock injector #4 stuck open.

When I crank the engine it will run for a couple seconds and then die unless I give it a little throttle. The problem seems to be amplified a little when the engine is already hot, in which case I'll usually also get wacky AFRs until things stabilize.

I've searched and re-read the manuals more than once and haven't made any progress on figuring out what's going on.

Can anyone point me in the right direction of where to start with tuning this out? I've attached a log of the engine failing to start and then starting successfully afterward as well as my .msq file

 

I would check after start enrichment, probably need to increase it. If it's doing it after hot starts you may want to look into MAT correction or even better, closed loop idle settings.