my civic ex has abs brakes and on the ecu there is a box for abs unit with a separate harness, now i have a b16a and im using my obd2 harness and a p28 ecu, do i just keep the abs unit in hooked up or what? Has anyone ran into something similar to this?

 

i would just keep it hooked up u shouldnt have any problems just make sure the abs light doesnt come on that would mean somthings wrong.

 

Don't worry about the ABS box. Just switch out the ECU's and leave the ABS unit alone.