I just came across a great deal on like 30 ECU's and I'm trying to figure out which ones are which; that is to say, what the ECU code belongs to motor and tranny wise. I can figure out most of the OBD1's because I know what to look for inside of them, but the Accords are a little different than any obd1 ECU I've ever seen... LMK if you guys know what's up with them. I can tell if they're OBD0/OBD1/OBD2A/B etc, just not what motor and tranny they came from.

 

There's an ECU code on the side of the ECU. You can easily lookup what they're for.

 

37820-p06-a02 would be a manual 92-95 civic dx engine computer etc.
The middle three digit code signafies the model of the vehicle/ecu.
If you google or search h-t you will find an ecu id guide.
The last three digits signafy country/manual/automatic

http://www.phearable.net/tech/wiring/ecus.html