OK heres the problem, i have a 90-91 CRX Si which had a JDM b16 obd0 wire harness, my hommie blew the motor so i got a year 2000 b20. Heres the problem, i got the swap in everything is good but the problem is the ECU, i was told that i can use my p73 b16 ecu with the b20 if i configure it with my V-tec controller, changing the fuel curves and disable the v-tec. I need to know if anyone knows how to program the v-tec controller to control the b20 using a p73 ECU... its possible but if this **** takes to long anyone have a 90-91 LS ECU for free or for sale!

 

I'd use the LS ECU. The VTEC ECU is going to throw codes like it's going out of style.

 

Yes I agree..Just use the LS ECU, plug and play if your OBD matches.

-Lor