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Discussion Starter · #1 ·
I've always wanted to know if the 02 light that comes on at 90k miles would go off at 180k miles, if it were left alone. Yesterday I proved that it does! on at 179,999, off at 180,001. So, unless the light bothers you, just wait another 90k miles and it will turn off on its own.

-Tad
 

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5,577 Posts
Discussion Starter · #3 ·
The light turns on every 90k miles to remind you to replace the O2 sensor(s). It may or may not even turn on in the OBDII Isuzus - depending on if the computer reminds you to do it or not.

The normal procedure to reset it is to remove the console and either flip a switch, or move a screw from one hole to another, depending on which console you have.

-Tad
 
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