I dont understand MS
#51
http://www.miataturbo.net/showthread.php?t=62404
from this thread
same on the NA? best way to do it.
from this thread
Removed o2 sensor from car, install wideband sensor. Run sensor wires to wideband controller, connect wideband signal wire from controller inside to the o2 input wire. Probably best to put a splice into the stock o2 wire coming into the harness with and easy to remove connector. That way if you want to go back to the stock sensor you can just disconnect the wideband signal wire.