irar said:Come on guys, it's not that hard a question is it?? The o2 sensors in the exhaust measure the exhaust gasses. What are they measuring for? What do they do with the results?? What specifically are they looking to control??This isn't a test. I have a reason for asking.
Ira
My Dodge Dakota ran like crap for the first 10 minutes of driving it every day and I knew it was the O2 Sensor(s). Took it to the dealership and because they couldn't pull a code they refused to do the change under warranty. I told them if it didn't fix the problem I'd pay for them myself. It did and the truck drives fine. Moral of the story here; don’t always trust a machine to do a man's thinking.irar said:Codes are unchanged, just my usual EGR delete codes. Just soot on rear bumper cover. I decided to change the sensors because I couldn't verify age or condition, although when they came out the looked pretty clean (I think).
Ira