Check engine Light
 

Doc,
I have a 1999 Porsche 996 and the checkengine light came on while I was driving. Engine was running fine and no problems. I took the car in and they said the "lean limit was reached" and on the service sheet it says P1123 oxygen sensor 1-3 and P1125 oxygen sensor 4 -6 . What could be causing this to happen. Yesterday my check engine light came on again. Thanks for your input.