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  1. #1

    Join Date
    Jul 2005
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    Miami, fl
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    When do you know and a/r o2 sensor is bad?

    Would it read lean or rich?
    Thanks


  2. #2
    speedskixp's Avatar
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    Feb 2008
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    venice fl.
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    8,117
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    The ones I have seen go bad ussualy read crazy lean #s like in the 30s. When it does that you know its bad. Also when my last one went bad it would not calibrate and would not show any numbers.

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