does any know if all the internal wiring harness in the cabin is the same for 88 to 91. i have a 91 civic dx (former race car) and the guy i bought it form threw in a si internal hareness, he said it was from a si, but some plugs were missing to the cluster. i picked up dx internal harness but was cut from the big hunk of wiring to the ecu. now i was wondering if the 88-91 was the same so i could install the new half to the old half. does anyone have a pic of the wiring diagram for a 88-91.

thanks

 

well with my experience w/ wiring harness in several cars i have dunn if you can find the same year and model you MIGHT be ok, as far as mixing and matching harnesses good luck i think you would be better off getting a harness head lights to tale lights.