This has been troubling me for some time now. I have a 96 honda civic non-vtech and i have my catalytic converter on my headers. Which makes me have two o2 sensors. Well i got new 4-2-1 headers and there is only 1 o2 sensor hook-up. Well i am running on a check engine light because i only have one o2 sensor plug up. How can i get rid of this problem??? I dont want to run check engine light, please help me out.