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International Automotive Technicians Network
2002 chevy van with 5.7L. both banks lean
Posted to Technical Discussion Forum on 11/10/2012 74 Replies

Another tech replace intake gaskets and returned with po171 and p0174. both banks at +20. found hose to intake boot disconnected and cam retard at -11. connected hose and set cam retard at 0. reset fuel trim and but immediately goes to +12 to +15.

at idle an... Login to read more.

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