i dropped a b18a1 out of a 91 integra into my 93 civic. i was told that that both harness's are obd1 but the the cars harness wont fit the fuel rail harness on the motor. what can i do? are they both obd1 or not? should i get the harness from the integra? please i need help this is my first swap

 

do you mean the injectors? if so just change the plugs, cut both sets and solder in the integra plugs with the civic harness.