O2 Sensor broken?

[baf32]

On my MMCD, I see a constant voltage of 2.03V for the front oxygen sensor regardless of rpm or tps. Rear oxygen sensor sees a constant voltage of 0.01v which makes sense since the car doesnt have a rear sensor.

Question is can MMCD software having problems displaying the correct voltage or is it more likely my O2 sensor is faulty. Funny thing is no CEL shows up for an o2 sesnor. How can I test the 02?

 

[madmader]

First lets get that engine at normal opprating temp. Warm that o2 up by running at around 2500 rpm for 3 or 4 minuets. It should be in closed loop then.

Try the method you are using now, and also backprobe the o2 sensore and do a voltage check with a DVOM.

Take a reading for about 20 seconds. Like you said the voltage should not stay a constant. It should very within that 20 seconds at lest 7 times.

 

[baf32]

What values should I see on my pocketlogger? Isnt 2.03v beyond the range I should be seeing?