Wideband O2 sensor placement
#1
Wideband O2 sensor placement
First, what 0-5V O2 sensors do you HP tuner guys like most?
Second, where in the exhaust do you place them to get the best reading?
Third, how do you know when they go bad? Do you regularly replace them?
Second, where in the exhaust do you place them to get the best reading?
Third, how do you know when they go bad? Do you regularly replace them?
#3
TECH Regular
1. I'm not getting into this one. There are all kinds of different widebands that will work and it depends on what you want (cheap,accurate,easy install, permanant or temporary mount). There is a thread a few pages back with a poll about the "best" wideband that is many pages long so another "best wideband" thread isn't needed, kinda turn into a flamewar after a while. It's pretty hard to go wrong with any of the widebands in that thread. Sorry but this question gets asked every week here so they usually go unanswered.
https://ls1tech.com/forums/pcm-diagn...sion-poll.html
https://ls1tech.com/forums/pcm-diagn...-wideband.html
2. This is another debatable question. Some say they like heat some say they like to not get too hot. I took the not so hot approach and put it back 5-10 inches from my narrowbands in the headers. If you have cats they need to be before them though. Just try to keep it mounted between 10 and 2 on the pipe to keep water/condensation off the sensor.
3. This depends on a few things. On a stockish car they can possibly last years unless you luck into a crap sensor or screw up the install. They are cut short when you run leaded fuel, run too hot, wire it wrong, or mount it to where water can get at it. My LC1 has lasted over a year now with no problems.
https://ls1tech.com/forums/pcm-diagn...sion-poll.html
https://ls1tech.com/forums/pcm-diagn...-wideband.html
2. This is another debatable question. Some say they like heat some say they like to not get too hot. I took the not so hot approach and put it back 5-10 inches from my narrowbands in the headers. If you have cats they need to be before them though. Just try to keep it mounted between 10 and 2 on the pipe to keep water/condensation off the sensor.
3. This depends on a few things. On a stockish car they can possibly last years unless you luck into a crap sensor or screw up the install. They are cut short when you run leaded fuel, run too hot, wire it wrong, or mount it to where water can get at it. My LC1 has lasted over a year now with no problems.
Last edited by 1987firechicken; 05-15-2009 at 08:43 PM.
#4
Thanks for the tips, the 10 and 2 placement makes a lot of sense. I'll read through the links you posted as well, I'm new to wideband tuning and fuel injection and am excited to learn.
#6
Wideband.
Ok I currently have my wideband installed. I have single exhaust. I wanna do true duals. can I put the wideband into one side and still get an true reading? or... do I need a dual wideband sensor setup?
#7
Thanks again for the links.