I just bought a '91 CRX with a complete B16 swap in it (B16A1 I do believe). The guy told me that it had a PR4 ECU in it, and he told me that it was the wrong ECU because the ecu was out of a LS Integra, and that I had to get the correct one for it ...Can anyone out there help me figure out which ECU is the correct one ???

Thanks,