Lean at Idle

[Spyderturbo007]

Mine was doing the same thing and it turned out to be an exhaust leak. If you were running that lean, you would be maxing out the FT's and ending up with a Fuel Trim Malfunction (Bank 1) CEL, so it sounds like your exhaust leak is somewhere between the front O2 and the WBO2. Mine was a blown O2 housing to DP gasket.