I started a thread in the civic/del sol forum, but haven't really yeilded an answer, so I thought I would bother y'all.....here's the other thread it has more details...
https://honda-tech.com/zerothread?id=801414

anyways, can anyone tell me the downfalls to using a p28 ECU on a D16Y7?
I'm mainly trying to skate around not having a cat, and not using the 2nd O2 sensor, eventually the car is getting a D16Z6, it's just a matter of time...

thanks in advance

btw, I did do some searching but didn't find a substantial answer

 

I'm asuming that the air/fuel wouldn't be right during upper rpm's
true?
what else would be wrong?