I have the Adaptronic Plug-N-Play ECU for my Rx-7, and when ever I push the throttle over 10% or so, all the electrical in the entire car shuts down. Once I let off the gas it's fine, but it just cuts out completely. I've been trying to find some troubleshooting stuff online, but I haven't found any matching my problem. Have any of you heard of this problem, or do any of you know what might be going on? Please help me if you can, I really can't find anything for it.

 

This kind of weird problem I've experienced before due to broken engine mount(s). With the car stationary and in neutral, have someone rev the engine to see if you can duplicate/trace the problem.

 

i recommend taking a video of what is happening. Also, log the data and upload the file.
There's a sub forum for the Adaptronic so might want to post there too https://www.rx7club.com/adaptronic-engine-mgmt-aus-311/