waltsum3 Posted December 6, 2010 Report Share Posted December 6, 2010 Started throwing codes last night (P0171, P0174) on the way home from VA, weather was about 25 deg and snow. Looked up codes and it said ( Fuel Trim System Lean Bank 1, Fuel Trim System Lean Bank 2 ) Anyone have any ideas what could be causing this?. Cleared the codes last night but they came back today on the way to work, Thought there was a P0101 code ( Mass Air Flow Sensor Performance ) last night to but did not show up today. Quote Link to comment Share on other sites More sharing options...
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