What up guys I'm running into some problems with my build. See if u guys can help me out. First one injector doesn't work I switch it with a good one that I used on # 4 clip and it doesn't work on # one clip then I was checkin other stuff out and then all injectors went out I'm guessing withs my main fuel relay what u guys think

 

maybe your fuel resistor box went out. is this obd0 or obd1?

 

obd 1 conversion on s300 but the box is still in connected could that be the problem??