What should my o2 voltage read on my logger?

[JoEgsX90]

Anyone know what my 02 voltage is normal, so i can look out for it on my logger. Im trying to make sure my front o2 is working fine.

 

[1992awdlaser]

If your o2 is dead it will read very low, like .02-.04 volts. You should tune for around .92-.93 volts during full throttle.

 

[brownfinger]

Your O2 graph should zig-zag up and down like crazy when you drive like a normal person. The wave should center around .5V. There is a whole list of circumstances when the computer is ignoring the O2 input. Under those circumstances the graph may be different. With a warm engine, you should get the zig-zag at idle, and when cruising at a steady RPM under around 4000rpm.

 

[JoEgsX90]

yea well im only getting .2 to 5 or somthing

 

[brownfinger]

Find another O2 sensor to throw in there and then see if there is a difference. See if you can borrow or buy a used one instead of shelling out for a new one, just to check for a difference on the logger. Check the harness wires at the sensor plug, too. Also, an exhaust leak in between the sensor and the head can let air in, causing the sensor to read lean. Plus, a weak coil can do the same, by passing un-burned air through the combustion chamber. Finally, you may actually have a massive intake leak, and the sensor could be reading right. Are your fuel trims all maxed-out?
It is probably a dead O2 sensor.