i have a 97 SOHC civic CX hatch and i just bought (2) brand new Direct fit Denso 02 sensors to fix my check engine light because it was throught codes for both sensor, after i replace it, rest the ECU and there is still a check engine. Now i know it works because all of a sudden i feel the car driving smoother between shifts but the check engine still shows both 02's, i check the voltage of one of the wires from another 97 civic dx i have at accessory position and one of the wire is at 12 volts and i check the same wire on mines (Black/Yellow) and its showing 3.45v wtf is that a short some where? and there is no fuse blowing either but a few months back i had a problem with the Alternator SP sensor fuse blowing after every start which cleared up miraculously, someone help

PS also brand new battery, ALT, and VSS