02 Sensor appearance
#1
TECH Addict
Thread Starter
iTrader: (3)
Join Date: Aug 2003
Location: IL
Posts: 2,561
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech20year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Is there a certain way a properly working 02 sensor should appear?
AI figured since a sparkplug that is working properly will have a tan appearance and one that is black and sooty is running rich. That this might also apply to 02 sensors?Is that the case?
I pulled my 02 sensors while doign some exhaust work (*cough* gutting cats *cough*) and all four of them are black and sooty.
I do not have A-Tap or any sort of diagnostic tool. I always have an SES light due to EGR removal. AIR pump has been removed as well.
Sorry if this seems stupid. I did search under 02 Sensor for this information.
thanks
AI figured since a sparkplug that is working properly will have a tan appearance and one that is black and sooty is running rich. That this might also apply to 02 sensors?Is that the case?
I pulled my 02 sensors while doign some exhaust work (*cough* gutting cats *cough*) and all four of them are black and sooty.
I do not have A-Tap or any sort of diagnostic tool. I always have an SES light due to EGR removal. AIR pump has been removed as well.
Sorry if this seems stupid. I did search under 02 Sensor for this information.
thanks
#2
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,312
Likes: 0
Received 1,742 Likes
on
1,249 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech20year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I've never seen an O2 sensor that's been used that wasn't black. I'd guess it's normal....