i'm droping a 90-91 ls motor into my 88dxhatch. I was wondering if i could use the dx wiring harness? If i can, what mod do i make to it? What do i add or take out.Or is there another wiring harness that i can plug and play? thanx

 

You will have to convert the original harness you have now over to an Si harness. If your car was an Si it would be all plug and play.

 

Try your stock DX harness I could be mistaken, swap the LS motor harness for your OEM DX harness.

 

you need to use your DX harness and do the DPFI to MPFI wiring changes to it