92-95 civics are obd1, not obd0.
edit: Noticed you are using the dohc d16 already. Check your o2 sensor on your exhaust manifold - does it have 4 wires, or just one? Also, does your wiring harness have creamish white connectors or grey ones? If they are cream, and if you only have a one-wire o2 sensor, then you are running an obd0 setup; if they are grey with the 4-wire o2, you are running an obd1 setup. If you are obd0, get a pm6 out of a crx si. If you are obd1, get a p08, i believe. A p28 can be chipped with crome to run non vtec, so it may be a good investment for you if you want to swap a vtec engine in there later on.