[Zakman1111]

Just bought a 99 Porsche Boxster...got a good deal and have been fixing minor things...but I need some help and thought this was a good medium for advice. I was getting rough idle and noticed the tube was leaking between the AOS and the crank case so I replaced it. The car now runs smoothly, but I just got 6 more codes. They are:
P0151 Oxygen Sensor Ahead of Catalytic Converter (Cylinders 4 - 6) - Signal Wire Short Circuit to
P1115 Oxygen Sensor Heating 1 After Catalytic Converter - Above Upper Limit
P1117 Oxygen Sensor Heating 1 After Catalytic Converter - Below Lower Limit
P1119 Oxygen Sensor Heating 2 Ahead of Catalytic Converter - Below Lower Limit
P1121 Oxygen Sensor Heating 2 After Catalytic Converter - Below Lower Limit
P1130 Oxygen Sensing Adaptation Area 2 (Cylinders 4 - 6) - Rich Threshold
I have cleaned the MAF sensor...do you think I need a new AOS or CAT??? New sensor Bad or wired incorrectly?
It appears the previous owner replaced the O2 sensors (all 4) with generic sensors because he was having O2 sensor check engine light problems also...we purchased it with this problem.
Any help is greatly appreciated.