code p0155...bank 2 sensor 1

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04-23-12, 04:16 PM

oslouie

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code p0155...bank 2 sensor 1

How important is it to replace this sensor? Does it play a big role in my search for better MPH?

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04-23-12, 04:26 PM

GS4_Fiend

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Yes the A/F sensor will affect emissions and mpg

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04-23-12, 06:31 PM

oslouie

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This code has been on ever since i bought my car. I'm just hoping it gives me some kind of gain.

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