CADILLAC P CODES (POWERTRAIN) P0100 - P0199

I Own 2003 Cadillac Escalade The Check Light Came On And I Brought It To The Mechanic. The Codes He Pulled Up Were P0171-p0174 Fuel Trim...

I Have Cod Po 103 Mass Or Volume Flow Cirkut High Imput And What I Need To Du, Thanks.

I Replaced The O2 At The Cat. After 3 Days Code Reappread What Else Should I Look At

I Have A Code That Popped Up P0117 What Is This Code For