I have a 1989 civic hatch. But I have a 1995 civic hatch motor. The injctors are not getting fire on the ground side and it is not the ecu because i took the ecu out of a working si and it still wont work the injector main relay has been changed as well. Where is my troubles coming from

 

the ecu you took out of an Si...... a 88-91 Si, or a 92-95 Si?
88-91 Si... you'll need 88-91 injectors and hook up the injector resistor box
92-95 Si... you'll need 92-95 injectors and take out the injector resistor box

 

The ecu is out of a 89 crx si that runs. and i have an si intake manifold on the car as well all i am using out of a 95 is the head and block and seven wire distributor

 

if u are using the 4G ecu u should use the 4G dizzy with that..... i dont think the 5G dizzy will work on that ecu ( anyone correct me if i am wrong).... u sure its the fuel injectors and not the fact that u r not getting spark?? if u using a 4G intake manifold and injectors tru an inyector resistor, they should work..... make sure ur injector resistor is not bad... measure the resistance between one of the black wires and the red one....(color might vary, one of the 4 that look same and the single one)....when i had my engine tuned , they said that my 88 ECU will not really work on my 89 Dizzy, but it works.... trows me a code 9 but it works.. but in ur case. its an OBDI dizzy on a OBDO ecu..... ill check things back.....

 

the motor will start if you spray gas in the intake. this is enough proof that the spark plugs are firing and that the distributor is working but the cam and cranks sensors may have gone bad and these are what i have been told help pulsate the ground side of my injectors.

 

swap the dizzy for an obd0, those sensors you're refering to are I believe inside the dizzy and they may be good, just not the same specs as the obd0 dizzy, so the ecu doesn't know what to do with them

 

i did and it worked thanks for the info man.