two of my injectors work properly, but the other two dont get ground[the last two from left to right] all my injectors are good i switched them around, switched main relay and tried different ecus, checked wiring and everything is good, i added some groung to the injectors that dont work straight from the battery and they worked, they sprayed normally like the other two but i want to know if any of you know why my last two injectors dont get ground

 

did you do a mpfi conversion to them in the past? whats the model of the car?

 

yeah i did and is a 91 hatch dx