Alright so I have an obd1 ecu from my friend that has a chip for simple bolt on mods he got it done from erics racing in l.a. Anyways I have a 96 prelude so I wanted to swap my ecu for a obd1 so I have the obd1 ecu and a obd2a to obd1 ecu jumper from rywire..so I took my old on out and plugged this one in..I took it out and it ideld fine then when I opend it up it felt like vtec wasn't engaging and then at about 5400 rpms my check engine light came on soo now I have no idea what to do can anyone please help thanks a lot..

 

check the code and go from there.