PCM and MAF

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06-18-2008

culch1

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Location: Paris, IL

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PCM and MAF

Does the MAF mitigate the PCM's fuel mixture decision on a 05 ranger? This i chapter 5 of my quest to get rid of my check engine code p0171 an my spark knocking.

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06-18-2008

bruiser

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Location: lp,Texas

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P0171 System Too Lean (Bank 1)

the MAF sends the readings it get to the pcm and the pcm tells the injectors how much full to use...

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