2010 Chevy Malibu 2.4L Engine Code P0172: Causes and Solutions

Hello, I own a 2010 Chevrolet Malibu with a 2.4L engine that has recently triggered the P0172 diagnostic trouble code. The vehicle accelerates smoothly under normal conditions, but it stumbles during startup. While it runs well otherwise, I'm wondering if the issue could be related to a faulty fuel injector, or possibly a malfunctioning mass air flow (MAF) sensor or vacuum leak. Any insights into potential causes or troubleshooting steps would be greatly appreciated. Thank you, Art.