OBD0 or OBD1?

[tunerGONEbomber]

is there a quick way to tell? got my civic off a kid that didnt do the build and he couldnt tell me a single thing about it. i havent looked into the ecu alot but im at the point im going to have to do alot of re-wiring. prev owner said it had an OBD1 head but idk what that has to do with it really being OBD1. the car is a 1991 civic dx (which i think should be OBD0) but has a swap with a b16a(1 i think..) any help is appreciated guys.

 

[tunerGONEbomber]

just went out to check the stamp. it just says B16a and he said it came out of a 91 civic so i think it is just the second gen b16a, idk if that matters but more diagnostic info never hurt.

 

[tunerGONEbomber]

i know my ecu is OBD0 cuz i did some more research and that what it says for the PW0 ecu.......my life is a big electrical mess