1996 LX450 O2 Sensor Issues (Code P0133)

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Joined
May 15, 2008
Threads
1
Messages
27
Location
Arlington, VA
I've owned our '96 LX450 for the last 21 years - all good years - but I'm having a problem and Code P0133 pops up. I have an old Acron OBD II PocketScan, so the code read-out comes in chunks: P0133, MIL ON, MONITORS, 1 Inc, Catalyst, 6 Ready, Misfire, Fuel, Comp, 02 Snsr, 02 Htr, EGR

I can't tell if this is one problem or a series of issues.

Also, I can only find one set of sensors but thought there were 2x sets (4x total) assuming that I have a set per bank. The set that I am checking is on the passenger side underneath (mid & rear). I disconnected the wired connections, tested with a voltmeter, and did get a reading, so assume they are ok. I did NOT remove the actual sensor yet since (you guessed it) the bolts are super rusty!

And when I try to run, it coughs and sputters to the point where I can't run it consistently.

I've read through a lot of the forums on this issue, but can't find the posts (yet) that help me target this issue. So before I go off and order new sensors and struggle to remove the old ones, I figured I'd ask. Any thoughts or help? Thanks!
 
Hey, mynameisbc, did you ever get this sorted out? I'm getting the same code, and although mine is running fine, I want to get this fixed.
 
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