so I have done the ls swap in my 91 civic hatch... I started out with the dx harness and wired every thing in. then the other day I came across a 88 crx si that had the complete engine harness on it so i got it and brought it home after looking at the two side by side i noticed that there is a difference in the plug ends on the drivers side plug. The hatch plug has 12 wires on it and the crx si plug has 8. Any Idea as to what the wire all go to....what the difference is.....

 

Si and DC are 2 totally different models. They have alot of difference throughout the whole car. If ya wanna know where all the wries run. Grab a manual or look up wire diagrams on Google.

 

Sorry I ment dx.

 

the harness will not work. i know what each wire is for and you are better off just converting your stock harness to mpfi

 

so I took my stock harness and just add the injectors...hook everything up and it runs.... Now time to drive the thing.......