streetstylenperformance

I have a 4 wire in port 2 and a five wire in port 1 does any one know how this could happen? and where to find a 5 wire or and extession to run to an aftermarket cat on a 98 civic w/ a dy16b bottom end w/ ? top end. I can't figure out what top end I have. Or how to figure out why the p28 I bought and harness makes the engine idle @2300 rpm?