I recently changed my ecu(P28) and aquired a hondata. Since putting the hondata in the car, it'll start but soon after die. When the car dies the hondata lights will turn off and a cel will turn on. Few seconds after the it dying and the hondata turning off and the ecu im guessing, the hondata and the cel willl go away the fuel pump will prime and the car can start again. All brand new capacitors in the ecu and it worked before installing the hondata.

 

Had this exact same problem with my Cobra RTP. Ended up being the emulator not being all the way seated in the socket.
might check that out