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Join Date: Sep 2011
Posts: 14
Boxster with a little trouble O2, Maf, Aos

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
P1115
P1119
P1130
P1117
P1121
I have cleaned the MAF sensor...do you think I need a new AOS or CAT???
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.
Old 09-07-2011, 05:10 AM
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Location: Colorado Springs, CO
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Whoops. Wrong forum. Hope you get it fixed.
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82 928 s3&1/2 5 Speed LSD conversion
87 944 N/A 5 Speed (Under Construction)
81 931 (maybe for sale, well their all for sale lol)
Always looking for a good deal. Hello, my name is Carl and im a Poschaholic
Old 09-07-2011, 07:00 AM
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Here are what the code read:
P0151 Oxygen Sensor Ahead of Catalytic Converter (Cylinders 4 - 6) - Signal Wire Short Circuit
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
Old 09-07-2011, 07:02 AM
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Still wrong forum. Try the boxster forum. Not many 944 guys going to recognize boxster codes.

Ours might throw an oil pressure light here and there but without a hammer we couldn't tell you.
__________________
82 928 s3&1/2 5 Speed LSD conversion
87 944 N/A 5 Speed (Under Construction)
81 931 (maybe for sale, well their all for sale lol)
Always looking for a good deal. Hello, my name is Carl and im a Poschaholic
Old 09-07-2011, 07:05 AM
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aos, boxster, maf, o2 sensor

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