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option code wa2

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Old Jun 22, 2009 | 04:50 PM
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BADBUICK
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Default option code wa2
anyone have any idea what this option is.. it gave me a differnt o2 sensor what else?
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Old Jun 24, 2009 | 08:01 PM
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I'm pretty sure it is the O2 sensor and some tuning adjustments in the pcm. I believe it was for California emissions, but don't quote me on that.
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