P1128 & P1130 generally means your O2 sensors are working perfectly so don't change em. Search is your friend here to gain a better understanding of the problem:
http://986forum.com/forums/performance-technical-chat/16186-advice-cel-coded-p1128-p1130-2.html
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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