Year, model, and mileage?
Those are not mixture codes that indicate a bad MAF. More likely:
1. Water damage to harness or DME.
2. Rodent chewed/damaged harness.
3. Wrong O2 sensors for car.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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