O2 Sensor - Good?

[nissky]

Am i right to assume my O2 sensor is working fine?

The odometer is coming up to 80,000kms.

This is the consult output graph during normal cruising.

[Medium Dave]

From what I understand, yes. In closed loop mode the ecu quickly enrichens and leans the fuel mix around 'stoich' which gives that kind of readout. It jumps around quite quickly because the sensor is not reading on a 'linear scale - easier to explain with pictures

I am just learning about all this kind of stuff - so please correct me if im wrong

[Busky2k]

Yep looks like its running just fine, comparing to the throttle input too. I wouldn't worry at all!

[cowie165]

The output should oscillate between a highest minimum of 0.4V and lowest maximum of 0.8V with a freq>0.8Hz.

I had a picture/excerpt from the RB25 manual but can't find it Looks good to me dude