hey everyone, i got a few problems on this car, my car drives fine, but only after the ce light comes on, it sputters and knocks until the ce light comes on, i think it may be that i have an automatic obd0 computer on a obd2 5 speed b18b, but it might be something else, oh and my tach likes to flip around after about 3 gs so i have no idea whats goin on with that one, please help me if you can. Thanks

info:
1989 honda crx si
JHMED9 vin
B18B1 from usdm acura integra
OBD0 ECU from 1990-1993 integra gs

 

might help if you can give us the code its throwing

 

i just checked it, and i got a 12 on my ecu error code, help anyone