Its a 92 and from what I read the vtec-e thing wasn't on there til 94 & 95, but I could be wrong. The engine block is properly stamped and all the parts seem to fit a VX including the 5 wire O2 sensor. I ran through this in a different thread. See http://www.gassavers.org/showthread.php?t=5149
Thanks though, I appreciate the comps! I think she's a real gem. I'll be real happy once I straighten the FE out. If I can get 50 I'll be happy. It's running on the wrong plugs now and I'm changing them tomorrow. I'm hoping plugs will help.
I'm pretty sure mine doesn't have the VTEC on it, but I'll check tomorruh. Actually, my car is going in for some rust repair so it can pass inspection (still haven't got it inspected since I bought it!)
Couple things I'd like to add to that How-To:
When measuring the voltage on the TPS, you don't need the car running, just the ignition to "on/run"
Secondly, once you have the voltage set to .45V (slightly below that is fine too) Have someone press the gas pedal all the way to the floor (this is why I set my TPS with the car just in the run position) and make sure that the voltage goes above 4.5V and below 5V.
On the valve cover thing..All VTEC motors in 92-93 did NOT have VTEC (or in our cases VTEC-E) on the valve covers. This was a 94-95 deal for our cars.
When I first got my VX it had the ZFR5F-11 plugs in it and had a low RPM stumble something fierce once warmed up. It went down to being the normal power stumble upon acceleration once the correct ZFR4F-11 plugs were installed.
If the aforementioned fixes don't work to fix your idle problem, it could also be that the IACV or EGR are clogged and need to be cleaned out. I know on the 120k mile VX motor I installed in my civic, the IACV was pretty much clogged.
Good luck with the car, and it sounds like you got a great deal on it!
On the never-ending quest for better gas mileage...
Click the above link. It is a 1992 Civic VX. Scroll down to the pics. You'll see a pic of the engine with the vtec-e cover. I'm pretty sure mine doesn't have it though. But this 1992 model apparently does. Although... the ad says 99% stock, and the vtec-e cover looks pretty clean so maybe it is a replacement part. Peanuts and argyles.