Hi all. I need to focus on the operation of the oxygene sensor, and I don't mean the wideband sensors. I wonder if it's possible to see a tendancy of an engine begin to run lean by monitoring the oxygene sensor output? Even if the engine runs in closed loop and the sensor output walks up and down according to the fuel regulation, would I see the times when the output signal is low (lean) increase relative to the times the signal is high (rich)? Or could I put it this way. If the oxygene sensor output is only 10% of the period high and 90% low, could this indicate that engine is running lean? Or the same around if the output is high 90% of the period and 10% low, could this indicate a rich run? Thanks,
- posted
12 years ago