You can find a 1990 Honda Civic SI wiring diagram in the car's owner's manual. You can also check with local auto stores.
try going to this website http://ccs.exl.info/carwires.html#HONDA
An engine diagram for a 1990 Honda Civic is available through service repair manual books. These books depict how to correctly repair and troubleshoot the engine using diagrams and step by step instructions.
No it will not.
Autozone's website has free electric wiring diagrams
Let me know if you have found out the answer to this question i need to disarm my 1990 Honda civic also
A cigarette lighter on a 1990 Honda Civic is held on by prongs on the side of the part. Use a flat head screwdriver to push the prongs in so the unit can be pulled out. Unplug the wiring. Plug the wire into the new unit and slide it back in.
What size gas tank does the 1990 Honda Civic Hatchback have?" i have a 1990 civic and i have never been able to put in more than 10 gal.
Try looking at the workshop manual http://manualfile.com/Automotive/Honda/honda-civic-1988-1990-workshop-manual.html
what is code 14 in Honda civic 1990
How do you adjust the kickdown cable on a Honda Civic 2000 ex
The starter of a 1990 Honda Civic is located on top of the transmission housing. There are two bolts mounting the starter to the transmission.