Ok i got code 11 i just did a motor swap and now i get this code the motor runs for about 11 secs and then shuts off, sometimes it backfires and if you touch the throttle at all it shuts off. I have no idea what this means it says its something to do with power to the ecu interuption bad main relay, ignition switch, ignition, or ignition relay how would i test these so i kno how to fix this..