RX7 FC S4 Turbo + Adaptronic modular ECU
 

I want to ask for help.
An RX7 FC S4 Turbo and a modular Adaptronic ECU were given.
Everything needed for the install is set, Injector type, MAP correction, Triggering, as described.
The car starts, runs, then after a a few seconds it stops and you can't start it anymore, the starter only spins.
If I plug the factory ECU back in, it starts right up.
What could be the problem, I think it's some kind of setting, but I can't figure out what it could be.
The car is still completly factory and the air flow meter is factory and i don't remove.
Thanks.

I believe this was answered on the Rx7 Facebook pages by PeeKay (Bumpstart).

He's right about the AFM.

Once you go standalone, you remove all of that and bypass OEM functionality of things like Fuel Pump Voltage Regulator.

Your tuner should be able to explain this thoroughly.