O2 sensor ejected

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Joined
Jun 15, 2006
Threads
80
Messages
2,843
Location
Lincoln, NE
1996 FZJ80 122K

OK, so Dan's dogs must be getting hungry and I still haven't installed the last set of stuff yet.

I was out mowing my lawn and I noticed something hanging down from my truck. From the yard it looked like someone had hung a 5" long cross from a heavy chain under the passenger seat.

So, my immediate thought was, "WTF?"

I grab the PS slider and lay down on the concrete to find the post cat, pre muffler O2 sensor hanging by the wire. You know those nuts that everyone says are impossible to remove? They're gone. Nothing but rusty bolts left behind. The seal is still there.

Its like the nuts went into another dimension and the O2 sensor got burped out. It looks in tact.

So, is there a way to recondition the O2 sensor? Should I replace it since it has conveniently removed itself from the exhaust pipe?

*watching out the window occasionally to see if the aliens come back to remove any other nuts without disturbing the rust on the bolts*
 
Grench,

I'd just check the sensors' resistance per the FSM, and if it's within spec, wipe any dirt off and reinstall it. Get some new nuts (and maybe lock washers, as I did). I used Stainless Steel parts from ACE. The nuts are 8x1.25 IIRC.
 
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