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2004 Chevrolet Blazer Question: po155 code

 

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Tom4945, Alsip, IL, October 08, 2010, 17:05
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getting a PO155 code, already chanced oxy sensor, what could it possibly be

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  • Answer #1

    October 08, 2010, 19:02
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     Master

    The other O2 sensor??
    Which one did you change? The P0155 s for the B2S1 - Bank 2 , the O2 sensor before the catalytic converter.

    Zee

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