2002 Yukon XL P0174, P0171

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Posted to Technical Discussion Forum on 1/25/2006 64 Replies

This vehicle is already fixed. 2002 GMC Yukon XL, 5.3 liter VIN Z flex fuel. Complaint is MIL on. Pulling DTC's and looking at the Freeze Frame and Failure Records shows:

[2002 GMC Yukon XL K1500, ECM/Inputs/Outputs Scandata]

[2002 GMC Yukon XL K1500, ECM/... Login to read more.

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