My Prelude is also a 92 and I have one of the factory manuals that the Honda techs use (not Helms- this is published by Honda Motor Co.). The manual has info on both the H23A1 and the F22A1 engines plus any other info on the vehicle. It has the codes and troubleshooting flowcharts for each code, but it requires removing the ECU and using a multimeter and test harness to check them properly.

I don't know if you already tried it, but the first step to check for any codes is to reset the ECU in case the codes were flashing in error. To reset the ECU:
- Turn the ignition off
- Remove the "CLOCK RADIO" 10A fuse from the fuse box under the hood and leave it out
for 10 seconds, then replace
*If you have a factory stereo which requires the code card to reset it, make sure you
have it beforehand. Otherwise, just reset your clock and head unit presets
If the codes come up again, I can scan and send you the troubleshooting flowcharts and diagrams for the codes you listed. If you want them, send me a private message and I'll get them to you.