Hi everyone, this is my first post and my first swap. I bought a 1999 civic lx because it had a bad engine for $600. Bought a d15b from jdm engine depot for 650 (non vtec version) and swapped everything and started her up and she runs fine but theres a CEL because The lower O2 sensor wont fit. I cant use the stock one because its a one wire. And the one from the D16Y7 is too big but has the proper 4 wires I need. I am running it off of my stock USDM ECU because its a non vtec version and my Civic wasn't an ex or si. does anyone know where I could get the proper O2 sensor or if i need to make any modifications to this O2 sensor or something. Anything that would help guys. Thanks alot!