I have no spark to t2 coil . Changed to ign1a coil set up to eliminate igniter . Still no spark at t2 .ran wire from ecu pin out to coil ,still no spark I’m thinking the aem is toast ,but does crank sensor send separate signal to t2 coil ? So maybe wire to ecu from crank sensor is bad? Or sensor is bad ?

Maybe I’m misunderstanding what you meant but the sakebomb/ign-1a typically have you repining the factory igniter connection...whereas you say you set it up to eliminate the igniter in the second sentence. Just want to clarify how you are setting up the system.

Yes , tapped into igniter connecter , allowing me to remove the stock igniter from the system