i got an 88 hatch i converted it to mpfi and have an ls in it i am running obd1 injectors i am not getting any fire on the injectors when i made my harness i was gonna use obd2 injectors so i wired in a resistor box. i took the resistor box off using the plug with a cap on i have a pr4 ecu with a jumper harness and all that but my injectors arent working im getting fuel throught the rail and spark on all 4 plug wires and info would be appreciated but maby im thinking backwards 0bd1 are low impediance injectors right? not resistor box required? or is it the other way around