i did a motor swap from 2017 370z in my 2008 g37s coupe manual and after 200 miles of the car driving perfect my car cut off and fried my ecu. it has now fried 2 ecu’s since i got a new one to get programmed to it. what could be frying my ecu’s

 

Does your G leak water onto the ECU by the passengers right foot?

 

the car used to have that water issue pretty bad probbaly a year ago but i believe i fixed it. the car did get pretty heavy rain on it while it was sitting with no motor in it during the swap but after installing the new one and hooking everything up. everything was acting normal for 200 miles after the swap until it started frying ecu’s