2010 Dodge Nitro 3.7L Engine Running Rough with P0108 Code After Fuel Pump Replacement

I'm experiencing a persistent issue with my 2010 Dodge Nitro 3.7L engine. The vehicle has been running roughly, especially at idle, and the catalytic converter was previously replaced due to it turning red—this symptom occurred even after the replacement. A reliable source suggested that low fuel pressure from a failing fuel pump could cause similar symptoms, so I replaced the fuel pump. However, despite this fix, the P0108 diagnostic code is now appearing and persisting. The code indicates a problem with the Manifold Absolute Pressure (MAP) sensor, which may have been affected by the repair or installation process. I'm seeking advice on how to properly diagnose and resolve this issue—any insights into whether the MAP sensor needs replacement or if there's another underlying cause would be greatly appreciated.