1128/1130 means your car is running lean. It could be a lot of things:
Bad/loose gas cap
Bad oil cap/oil filler tube
Bad AOS
Loose/torn vacuum lines
Bad MAF
Check for vacuum leaks first. Look for signs of oil leaks around your AOS. Disconnect your MAF and drive the car. If it runs better, replace the MAF.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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