Very worried about extremely low O2 voltage

[CarSalesman]

I am only seeing voltages of 0.005 fluctuating to 0.010 on my O2 sensor at the ECU. I have varied the settings on my S AFC II and the voltages don't seem to change. I have tryed checking this with both a voltmeter and the notious blue wire mod and both read the same. I am not getting a check engine light which also has me very baffled.

Mods are:
S AFC II
bullseye turbo
injen pipe
65 injectors
KN fipk

3" turboback is "being shipped" according to rnr racing.

Do I have a dying O2 sensor??

 

[oddrob]

If it doesn't move more than that, you might have a dead O2 sensor.

 

[DSM90AWD]

I am only seeing voltages of 0.005 fluctuating to 0.010 on my O2 sensor at the ECU.

Is this in volts?

At cruise/idle (closed loop) you should see readings smoothly oscillating btw 0 and 1V. At WOT (open loop) readings should be anywhere from .88-.9xV

A bad O2 sensor generally stops oscilating (which yours seems to be doing).

What do your fuel trims look like? I suspect they are pretty far from 100%.

 

[marcmsj]

also make sure all the bolts on the 02 housing are tight... you don't want any leaks

 

[jfdid]

Check your wiring, and if not, check your sensor:

If you're cheap, you can actually test the O2 sensor.
Take it out, hook up a voltmeter, heat it up with a blow torch, and if the voltage rises, then falls quickly after you take the heat off, then the sensor's fine 99% of the time.

Let us know.