Alright I just need a quick answer, Can I use my OBD-1 Harness from my old d-series with this OBD-2 y7 motor? Or do i have to swap out the whole harness for the OBD-2 one? Let me kno asap, gotta get this car gone

 

run the obd1 harness and run a p06 ecu( you may need injectors because the y7 motor had 190cc) i think all other civics had 240cc which is going to cause you to run rich or if u wanna run a y7 ecu get a jumper harness for obd1-obd2( running obd2 u need y7 injectors or ur goign to run rich running 240cc injectors)

 

Okay, well i have the injectors, ecu, distributor etc. I dont need to bypass anything?

 

nope forgot one more thing the y7 had a 3 wire IACV so if u went with the p06 ecu u would need to do a 2 wire iacv conversion and prob use ur old T/B from ur other motor.

 

Do you have the old engine in there or is this a shell? If you have the old engine simply swap the motor in there and swap over your intake and exhaust manifolds (including injectors) over to the Y7 injectors and all. Run your factory ECU and distributor (it'll bolt right up) and alternator (the OBD2 is a different plug). Run your P06 ECU it won't run rich. You'll have an extra plug by the crank pulley, its the CKF and won't be used so just tuck it out of the way. It's a pretty straightforward and simple swap.

 

Thanks thats what i suspected, I swapped my intake manifold out already,injectors,ecu all that im grabbin the alternator today thanks for the look out i appreciate it