.Hookedonhatch.

I am having a reoccuring problem with code 01. Engine is a JDM b16aII, car is a 93 cx. Everything is working properly, however I constantly have my cel come on throwing code 1 for the o2 sensor. The ecu is a winfab chipped unit and the o2 sensor is a brand new obx o2. I checked my wiring repeatedly and used a multimeter to check for continuity from A6 (heater) and D14 (signal) at the ecu to the appropriate positions on the o2 harness. I have extended my o2 harness (soldered and heatshrunk). Could my problem be that I extended the harness and it is causing resistance in the signal? What is the proper voltage that the o2 operates at, i know it cannot see even .01 of variance?

instructor74

I have been told before that extending the wires can cause a code due to signal or voltage drop. But as of yet I have never had a problem with it. I extende mine a little over 2 feet an it works great. Are you sure you got all the wires hook up right

.Hookedonhatch.

I have been through numerous threads on this forum as well as some others. On my obx o2 sensor I have two white wires (for heater circuit, one is switched 12v and the other is ecu A6), one black (shielded, signal, ecu D14), one gray (ground). Does this sound correct?

.Hookedonhatch.

up up for more thoughts/ideas