WideBand Sensor Placement
Thread Starter
Launching!
Joined: Mar 2004
Posts: 233
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From: Dallas Texas
WideBand Sensor Placement What would be the optimum place to install the wideband sensor? Should it just be installed into an existing stock O2 location and unhook the stock sensor while in use. Being uneducated in the ways of the wideband I would think that it would be better to put it right after the Y connects and goes into a single, that way you could get AFR from both left and right banks. But there again I don't know jack about wideband (Yet).
Any opinions on this one guys?
Any opinions on this one guys?
I would install another bung and not remove the stock sensors. Place the WBO2 near the stock sensors and you will be fine. I don't know what you are using for a PCM (stock or aftermarket) but trying to read both banks is not an issue with a stock PCM so sticking it on one side will be OK.
Thread Starter
Launching!
Joined: Mar 2004
Posts: 233
Likes: 0
From: Dallas Texas
Cool thanks for the info. I was going to take my car to the muffler shop anyway to get them to redo part of my exhaust because the cat is hitting the driveshaft. So I just get them to weld in a bung at the same time. 
The widebands need a little different environment than
the narrowbands. Narrowbands just want hot. The WBO2
needs to be someplace where it will -never- be put over
its thermal setpoint, which the control electronics try
to maintain. If it goes out of thermal control then the
output is out of cal. So you wouldn't want, say, to go and
put the bung upstream of the stockers on an iron-logs car.
Downstream of cats is going to make for some smoothing
at best, probably some inaccuracy.
I put mine in the I-pipe back by the passenger's door trailing
edge. My cats are neutered
My reading is a composite of
both banks, that way. Which might or might not be better
than having it on one side of the Y.
the narrowbands. Narrowbands just want hot. The WBO2
needs to be someplace where it will -never- be put over
its thermal setpoint, which the control electronics try
to maintain. If it goes out of thermal control then the
output is out of cal. So you wouldn't want, say, to go and
put the bung upstream of the stockers on an iron-logs car.
Downstream of cats is going to make for some smoothing
at best, probably some inaccuracy.
I put mine in the I-pipe back by the passenger's door trailing
edge. My cats are neutered
My reading is a composite of both banks, that way. Which might or might not be better
than having it on one side of the Y.
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Originally Posted by matts22
If you just put it on one side, behind the stock narrowband O2s, is it best to put it on the driver or passenger side? Does one side run slightly leaner than the other?
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Originally Posted by Predator
Which side would that be John? Passenger or driver?
But my saying "boosted" was a little ambiguous...
Anywhere downstream of the turbo.
TECH Apprentice
Joined: Dec 2001
Posts: 357
Likes: 0
From: Whitby Ont Canada
Originally Posted by Cal
Perhaps another dumb ? .. but if you put the wide band sensor in the O2s location what is the PCM going to do to the A/F on the side with no INPUT coming from the sensor
... will it not skew your A/F making adjustments redundant 
Originally Posted by J&JsTA
Perhaps another dumb ? .. but if you put the wide band sensor in the O2s location what is the PCM going to do to the A/F on the side with no INPUT coming from the sensor ... will it not skew your A/F making adjustments redundant
... will it not skew your A/F making adjustments redundant 
TECH Addict
Joined: Jun 2002
Posts: 2,428
Likes: 0
From: Las Vegas, NV
Originally Posted by John_D.
I was thinking of a turbo setup rather than a supercharger setup.
But my saying "boosted" was a little ambiguous...
Anywhere downstream of the turbo.
But my saying "boosted" was a little ambiguous...
Anywhere downstream of the turbo.
Nevermind, but thanks John. I misunderstood this thread.
