I recently did some major maintenance on the Ody (Radiator, Valve Adjustment, Timing Belt, Water Pump) in preparation for a cross country trip. As doing my last minute check I hooked up my Bluedriver to check on my LTFT to make sure I don't have a minor vacuum leak after putting the entire intake back on again. My LTFT are about 5%, which is normal. But the downstream O2 sensor is not moving. It's constantly reporting 0.24v even when driving the car for 30 minutes. It never changed. I thought it was normal for the downstream 02 sensor to oscillate between 0.2 and 0.9 volts like the upstream sensor. Can anyone help what are normal voltages for the downstream O2 sensor. I don't have any codes at this time but curious about the correct voltage behaviour.
Regardless, I ordered the Denso upstream and downstream O2 sensors from Amazon. The upstream sensor is really lazy, but not bad enough to trigger a DTC. Should have them tomorrow and will replace them regardless as the van now has more than 200K miles on the original.
Regardless, I ordered the Denso upstream and downstream O2 sensors from Amazon. The upstream sensor is really lazy, but not bad enough to trigger a DTC. Should have them tomorrow and will replace them regardless as the van now has more than 200K miles on the original.
