> :idea: Can someone tell me if it is necessary for the o2
> sensor to be screwed into something or can it just hang? The
> engine light keeps coming on and the code is showing o2
> sensor. They are all new but do I need to get it screwed in
> before the computer will detect it working correctly. 1996
> chevy 1500 5.0 liter
I did mean light not ligt!!
the O2 sensor compares O2 content between 'ambient' (outside) air and the
if you just 'let it hang (assuming you ground the housing if a 1-wire)', it
will read '0.0000' as the same O2 content is present both outside and
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