so i recently did the mpfi swap to my d15b, it turns on and everything but at first only two injectors were working properly(3 and 4) the other two werent getting any ground(1 and 2)
i changed the resistor box, checked the engine harness and is good, i checked the ecu wires and they were some lose wires i fixed them, but still nothing changed

anyone has any idea of what could it be?

and yes i searched but i cant find anything close to what my problem is

 

Have you gone through all your wiring with a multimeter? You need to check all connections for continuity and go from there.

 

oh alright, no i just checked if everything was connected right

but the injectors that dont work get power but dont have ground

i dont know why