Chevrolet Malibu check engine light on with code P2097 and stalling issue when slowing down on Chevrolet Malibu

Some Chevrolet Malibu owners report experiencing issues with the check engine light illuminating alongside code P2097, which indicates a fault with the post-catalyst fuel trim system being too rich in bank 1. This problem may stem from a faulty oxygen sensor, a vacuum leak, or fuel system complications. Additionally, some owners have noted stalling when slowing down, which could be linked to various factors such as a malfunctioning throttle position sensor, fuel system issues, ignition failures, or low engine oil levels. To address these concerns, it is recommended that owners have their oxygen sensors and fuel trim system checked, as well as inspect the throttle position sensor and fuel system for irregularities. Regular maintenance of engine oil levels and ensuring the proper functioning of the fuel pump, fuel filter, spark plugs, and ignition coils are also advised to prevent stalling issues.