I put a D16z6 into a 93 base model sedan for my GF. I used the new d16 engines harness and connected it to the cars body harness. I'm using a p28 ECU. The problem is that the car idles at 1500 when it is started and at a grand when its warm. The ECU is throwing codes Mapping sensor, O2 sensor and vtec solonoid, this one makes sense cuz I haven't wired v tec yet. I guess my question is can I use the cars body harness for a d16z6 or do I have to change it to a d16 harness. because theres two plugs for the throttle body sensor and when one is plugged in the idle wants to jump and the other the car idles high.