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International Automotive Technicians Network
Re: 2002 Yukon XL P0174, P0171
Posted to Technical Discussion Forum on 1/26/2006

[...trimmed text...]

That isn't what I said, I said the PCM was in fuel control as indicated by the trims. I didn't say anything in regards to an intake leak, you did. Depending on the size of the intake leak, the PCM sho... Login to read more.