Hello everyone, I was doing a pull on the highway approximately going 100 mph at 5k rpm and my car just killed the engine. It just shut off as if we lost spark. Car only cranks now. Pretty sure lost spark inspected everything on the surface and it checks out. Not sure what could be going on

 

have you checked the fuel pump?

 

I have not car is running open headers and we smelt burning wire then it clapped. Not sure why ecu isn’t getting power anymore when the ecu is perfectly fine inside and working up till then as with everything else. Have to dive deeper

 

bruh..... Did you say open headers as in no pipe past the header? Or no header at all? If this is the case, you probably melted all the wiring harness that tucks underneath the passenger side where the ECU resides. Which is probably why the ECU gets no power.