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Re: 2002 Yukon XL P0174, P0171
Posted to Technical Discussion Forum on 1/25/2006 2 Replies

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Hi Rags,

Looks like it sets the codes right after startup. Could be worse at idle? Does this customer use E85 in his truck? What would be the results of an intake smoke test after pulling the foam p... Login to read more.

2 Replies Received (View Replies)