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Re: Malfunction of B1S2 as a Reason DTC P0171
Posted to Technical Discussion Forum on 10/15/2014

Hi,

Matt, MAF Sensor was good - not dirty (e.g. in as [...] [[...]] ) and only replacement of O2S B1S2 to eliminate the causes of DTC P0171.

Thanks for attention to my question, Login to read more.