Yes the MAF can cause a blinking CEL. If this was truly an IMS issue then you'd already know it because the car would be DEAD! Trust me on this - IMS does not cause sputtering - it just kills the car - kind of like RAID for Porsche.
As scary as a CEL can be - this sounds pretty benign - not necessarily cheap - but easily fixed.
Let us know....
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'06 Cayenne Turbo S, Beige Metallic/Tan
Ex - '99 Arctic Silver, Red Interior, Silver Top
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