This vehicle is equipped with the M272 engine. It uses an entirely different engine management system than it's predecessor, the M112. MAF sensor failures are extremely rare on these engines. The most common cause for MAF fault codes, in my experience, is an incorrectly installed air filter housing or, a torn/deformed seal where the MAF sensor fits into the housing.

I've also had a handful of cases where engine oil contaminated the engine wiring harness, causing a super-rich running condition. These were all on higher mileage vehicles. Good luck.