All 92 civics are wired for vtec oil pressure and vtec solenoid up to the passenger side shock tower. All you will have to do is add a knock sensor.That is as long as you already have a 4 wire o2 sensor.
You will use your original engine harness.

Other than that the mounts,axles & shift linkage you need have to come out of a b16 delsol or a dc integra.