I’m noticing my Bank 1 upstream sensor voltage is holding steady at about .3 V and my bank 2 to hold steady at around .6-.7V. No fluctuating at all in both. What are typical reasons for this?
That’s called lazy O2 sensors.
Or in other words, the O2 sensors aren’t switching.
Thanks @Tester. IN my case both have been replaced, twice! Are theire any reasons for them to be…lazy?
Contamination from some source.
Did you read the article I attached?
You’re vehicle has wide band O2 sensors.
To understand how these function, read this.
Is there a particular reason you are monitoring the signals of those two sensors? Or just out of curiosity? The reason I ask is b/c on your particular engine & emissions configuration this may be normal.
Hi @George_San_Jose1. I’m trying to track down a rough idle with random misfire code. Here’s a post which is related to the original issue. So I’m trying to find any sort of slight clue of what the issue could be.
Thanks for the site reference. I was going to ask about this, as they are becoming quite popular.
@Tester took me a while but I understand what you mean now by wideband. Thanks for the answer!