New to the Forum, Have a '97 HX civic I swapped in a '97 EX engine, trans and harness, I know being an HX is doesn't have the wiring for the rear O2, so I'd like some insight on how to re-wire it or If I should go P28 with the jumper harness. Its only a 4 cylinder circle track car so not too worried about passing a plug in inspection. Thanks.