Swapped a b16a into my 92 hatch about 2-3 months ago, the car already had a hacked up harness in it, so I bought a z6 harness a few days ago and swapped it in. Now the car won't rev past 6800 rpm. I've tried my p30 and my chipped p28 and I have the same problem with both. I have a CEL, its code 1 for an O2 sensor that is plugged up and was working fine before I swapped harnesses. I've looked over wire colors and made sure all plugs are in the right place. I'm racking my brain on this one. I need some input.