I have a 89 Civic hatch, w/ a D15b1, with a b2 head. I still have the little intake(PGM) it came with. I got a Multiport intake from a buddy, off his SOHC VTEC, and I would like to install it on my motor. What else do I need for the swap?? The intake already has a throttle body, 4 injectors, and rail, the intake shouldn't need anything but a gasket. Do I need a new distributor, or any wiring??

 

you need an si distributer and the resistor box and i believe little wiring

 

do I need a whole engine harness?? and the distibutor is for the injectors???

 

i think you just need si ecu and harness and the si distributer for it from the wiring difference i believe we did it in my friends car a while back and the stock distributer did not work so we got the si distributer and it worked because of the ecu

 

and the multiport fuel resistor box