Well the valve train and cams seem to be running smoothly. But I am still having issues with my A/F ratio. Seems start up and initial driving it stays pegged at 10.0 so it is running pig rich. Then a little way down the road it jumps to 14.3-14.7 and just stays there. It doesn't change regardless of throttle position, manifold pressure or engine load. She threw the 0171 and 0174 codes after a couple of quick pulls to see if she was adding enough fuel. I cleared the codes and drove her to work this morning. No codes but A/F stayed rock steady at 14.3 and never really flinched. I did go over all intake connections and checked all vacuum lines and ports. Next I think I'm going to clean the MAF, but I do that pretty regularly anyways. Changed the fuel filter about a month ago.
I was have this issue before and when I discovered my cam phaser was out I figured that maybe the ugly A?F readings were due to improper cam timing. I guess I was having two separate issues at the same time.