ok i just installed a new Denso oxygen sensor both primary and secondary and the check engine light is still on i have a Civic CX 97 i can't figure out whats wrong i dont htink i did the wiring wrong because from the denso sensors i bought came with 4 wire (2)black (1)White (1)Blue and wired it from the OEM connect as Blacks to blacks, white to white and, (Denso) Blue to (OEM connector) Green, Damn i need to get this fix asap to pass inspection which is due months ago on the 7