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Old December 2nd, 2019, 13:41
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lazyxj lazyxj is offline
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Join Date: Mar 2004
Location: Los Angeles
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Re: Where to mount my wideband O2 sensor on my 2000 XJ?

Quote:
Originally Posted by bajabronco View Post
LazyXJ -I have the same headers as well.

I am still thinking of going before the cat. Have you found a big deviation in the readings between the front and rear banks on your two wide bands?
The wide-band O2 sensors must go before the catalytic converters to get an accurate reading of the mixture.
I notice no major differences in mixture readings when switching from one sensor to the other.
Fuel trim levels can be read with OBDII monitor, such as a ScanGauge or Ultragauge.
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01 Sport, Russ Pottenger 4.6, AW4, 4" lift, 33 X 10.50 KM2, 4.56-8.25 TruTrac, D-30-E-Locker with alloy shafts, Hidden M8000 winch, Vanco front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, NP242, Towing baseplate
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